Christopher Chubb @QuantumChubb
Postdoc@ETH Zürich. Mathematical physicist and quantum info theorist (big pile of qubits thinking about other qubits), 🇦🇺➡🇨🇭. he/they 🧦🌐🔰🥀🏳️🌈✊🥑🚄 linktr.ee/cchubb Zürich, Switzerland Joined May 2019-
Tweets431
-
Followers1K
-
Following295
-
Likes538
Wait... does this mean my doggy coins *weren't* a solid investment? There goes my life savings!
Wait... does this mean my doggy coins *weren't* a solid investment? There goes my life savings!
29
156
1K
401K
506
Download Image
Christopher Chubb retweeted
#QIP2024 Tensor Network Decoding beyond 2D. Exciting results. By Christophe Piveteau, et. al.
Christopher Chubb retweeted
@QuantumChubb I've had it independently confirmed that @QuantumChubb is actually the peak performance error correction theorist
Christopher Chubb retweeted
I got a copy of the #qec23 group photo:) what a great group of people in a beautiful location!
Christopher Chubb retweeted
I am excited to announce that I will be joining IonQ in December to build a QEC team to design a fault-tolerant architecture for their quantum computer! Read more here: nicolas-delfosse.com/why-i-am-joini…
Christopher Chubb retweeted
Finally, some good news.
Finally, some good news.
Anyone on bluesky, add me: @QuantumChubb.bsky.social Also if anyone needs an invite code DM me, I have 5 left
Christopher Chubb retweeted
I've just put out a post on graphical tensor notation for interpretability. It's a tutorial introducing Penrose notation, aimed for understanding how Transformer AI systems like GPT work, and the most basic kinds of algorithms they can learn internally: lesswrong.com/posts/BQKKQiBm…
Well... the 'no' camp was right: the government still hasn't released enough information on the referendum for me to make a fully informed decision. Give us the details Albo! 🗳️🌭 #Auspol #Referendum2023
Christopher Chubb retweeted
Are you a fan of the surface code? Did you ever wish for a similar simple code in three dimensions which had optimal code parameters given the locality constraints? In new work with Nouédyn Baspin, we have just the codes for you! arxiv.org/abs/2309.16503
Christopher Chubb retweeted
There is something mesmerising about seeing one's paper(s) completely plagiarised, theorem by theorem, without any reference, and posted on arXiv. Compare arxiv.org/abs/2010.02152 with our arxiv.org/abs/1604.03023
Jens Eisert @jenseisert
21K Followers 6K Following Scientist, professor of quantum physics at @FU_Berlin and affiliated with @HZBde and @FraunhoferHHI. @ERC_Research fellow.
John Preskill @preskill
142K Followers 1K Following Theoretical physicist @Caltech, Director of @IQIM_Caltech, Amazon Scholar
Anthony Leverrier @letonyo
4K Followers 1K Following researcher on quantum error correction at Inria @[email protected]
Earl T Campbell @earltcampbell
4K Followers 624 Following Quantum wizardry // VP of Quantum Science @riverlane_io & opinions are mine // senior lecturer @sheffielduni.
Andreas Wallraff @AndreasAtETH
31K Followers 8K Following Research and education in #physics with a focus on #quantum #computing, #communication and #sensing with team @qudev @ETH_en. Director of the @ETHQuantumCntr.
Graeme Smith @quantum_graeme
11K Followers 9K Following Theorist at @QuantumIQC. Quantum information, quantum computing, science, parenting. @graemesmith.bsky.social.
Isaac Kim @Isaac__kim
4K Followers 452 Following Working on quantum information, computation, and many-body physics. Assistant Professor of Computer Science @ UC Davis.
Alvaro M. Alhambra @AlhambraAlvaro
1K Followers 582 Following Quantum physicist @ift_uam_csic . Will apply Cauchy-Schwarz for food.
James Wootton @decodoku
7K Followers 2K Following Helping to make quantum computers @IBMResearch. Occasionally misusing them for fun and/or science. Two Ts and no Es. All 𝕏cretions here are my own doing
Felix Leditzky 🏳�.. @felix_led
3K Followers 1K Following Assistant Professor at @UofIllinois (Math) & @IllinoisQuantum member | Quantum information theorist | Vienna native | He/Him
Victor V. Albert @victorvalbert
3K Followers 605 Following Theoretical physicist @NIST, Fellow @JointQuICS, Zookeeper @theeczoo
Richard Kueng @RichardKueng
2K Followers 644 Following Quantum computer scientist @jkulinz, coin tossing enthusiast and armchair historian. Lived and worked in Switzerland, the UK, Germany, Australia and the US.
Bartosz Regula @BartoszRegula
758 Followers 224 Following Mathematical quantum information @RIKEN_en @RIKEN_QC 🇯🇵. A mathematician pretending to be a physicist or vice versa, depending on your point of view.
Robert Raussendorf @RRaussendorf
2K Followers 194 Following Physicist and quantum information scientist. I work on foundational questions in quantum computation.
Chris Ferrie @csferrie
9K Followers 61 Following Quantum theorist by day, father by night. Occasionally moonlighting as an author.
Marco Tomamichel @marcotomamichel
3K Followers 538 Following An information theorist at the quantum frontier at @quantumlah and @NUSingapore: opinions are my own
Ben Brown @BenJamesBrown
2K Followers 412 Following Member of the Quantum Computing Theory Group at IBM Quantum. My research is mainly focused on quantum error correction and fault-tolerant quantum computing.
Joschka Roffe @QuantumGizmos
1K Followers 1K Following Quantum Error Correction Lead | Quantum Software Lab | University of Edinburgh.
Peter Rohde @drpeterrohde
4K Followers 5K Following Quantum computer scientist, cryptoanarchist & climber. Developer of @moodsnapapp. TEDx speaker.
Michael J. Biercuk @MJBiercuk
9K Followers 2K Following Founder @qctrlhq making #quantum tech useful for you. Professor. Speaker. @fondationgphg Academy member. Unabashed supporter of constitutional democracy.
Vipul Upadhyay @Simple_Vipul
0 Followers 88 Following
Asit Pradhan @AsitBapun1989
14 Followers 306 Following
PQA Labs @pqalabs
11 Followers 26 Following To secure the future by pioneering post-quantum solutions that safeguard digital privacy and security for all
ethan ouy @EthanOuy16136
1 Followers 33 Following
libcat @libcat75889
36 Followers 77 Following
Eliska Greplova @EliskaGreplova
2K Followers 1K Following Quantum Physicist @TUDelft, group leader, sci-fi aficionado, hiking the world. @[email protected]
Les Denali 🌈 @lesliebefriends
22 Followers 169 Following 🔭🕵️♀️ | music | ghost stories | feminism... not in that particular order.
Martin Fan @perfectoid_ai
395 Followers 8K Following
Caxapa @Caxapa617
64 Followers 74 Following
陈隆 (Long Chen) @Jason_Chen_Long
307 Followers 985 Following Associate Professor at Institute of Software Chinese Academy of Sciences. Researcher of cryptography and blockchain.
Peripety Labs @peripety_labs
279 Followers 1K Following Artificial Intelligence consultancy. Founded by tech executive, @mrhinkle, subscribe to our newsletter The Artificially Intelligent Enterprise for AI insights
fredericsauv @fredericsauv
208 Followers 271 Following Quantinuum. Ex Postdoc @ LANL. Researcher on Quantum Computing and Quantum Machine Learning
Julio Cesar da Silva @jcesar_dasilva
546 Followers 769 Following Research scientist based on the Institut Néel CNRS/UGA, France, and interested in advanced high resolution microscopy🔬techniques and artificial intelligence.
Sofiia Myrvoda @s_mrvd
11 Followers 53 Following Ukrainian. Searching for PhDs in Data Science/AI Erasmus Mundus scholar | FLEX'19 alumna | Studied in 🇺🇦🇺🇲🇮🇹🇩🇪
Anthony Le @AnthonyVuLe
72 Followers 267 Following CS PhD student @manningcics, @umassamherst | Quantum Computing & Deep Learning. I love building systems, esp networked distributed systems.
Phung Cheng Fei @salmon_shitake
436 Followers 5K Following
Francesco Barone @titant3k
61 Followers 301 Following doing quantum stuff, most of the time 🎮 quantum thesis in @uniinnsbruck 🇨🇭 CERN summer student @CERNquantum 📍 MSc student @UniPadova
Fabien Clivaz @FabienClivaz
1 Followers 30 Following
Christopher Peters @statwonk
5K Followers 5K Following Chief AI Scientist @touchdotai. Bayesian statistician-econometrician-AI / engineer, @gentryhanks partner, 'he/him', #AutisticPride ex @zapier #9
Dumb $RVNC Guy🧃 @DumbInvestorGuy
755 Followers 649 Following Source of negative alpha and provider of exit liquidity. Uninformed macro banter. Occasional politics. Contra. Followed by bazcap and not yet blocked by Taleb
Tpot IRL @DogheadMul88316
19 Followers 91 Following
Ananya Thakur @AThakur_3
12 Followers 144 Following Pursuing a Master's in Biochemistry, specialization in Molecular medicine
Tom Holden-Dye @tomholdendye
183 Followers 354 Following Researching quantum computing and many-body physics - PhD @UCLQuantum; outreach @Orbyts1; seminars @ https://t.co/FbQa3Wta4A (he/him)
Halil Dogan @olushdogan
133 Followers 257 Following Founder | System Architect | Quantum Computing |
mlecchaslayer156 @mlecchasla37448
97 Followers 3K Following
Tomi Cuentitas @federico_p91709
48 Followers 201 Following • PhD Fellow: Quantum Info/Many-Body (Efficient Simulation of Non-Markovian Systems) @unlp. • Research Fellow @InHenriPoincare • Ex-Fellow @institutobalseiro
Ibrahim Ahmad @Ibrahim63433664
85 Followers 3K Following
PikaVoltV2 @PikaVoltv2
18 Followers 2K Following
Omprakash Chandra @OP__Chandra
140 Followers 1K Following I work on quantum error correction, and error recovery | 🇮🇳 | Ph.D. Student, @Macquarie_Uni | @SydneyQuantum |@ARC_EQUS| Integrated MSc(Physics), @IITKgp ‘20
Erickson Tjoa @EricksonTjoa
5 Followers 64 Following Postdoc @ Max-Planck-Institute for Quantum Optics. Quantum information theory, quantum many-body physics, quantum field theory in curved spacetimes.
Infleqtion UK @InfleqtionUK
529 Followers 1K Following The World’s Quantum Information Company. We build software-configured, quantum-enabled products that operate at the Edge. Oxford, UK 🇬🇧 Follow @Infleqtion
kyaq @amuutrqa34
27 Followers 126 Following
Johnnie Gray @jamstro
31 Followers 137 Following
Johannes Frank @Johanne69001453
4 Followers 84 Following
Jens Eisert @jenseisert
21K Followers 6K Following Scientist, professor of quantum physics at @FU_Berlin and affiliated with @HZBde and @FraunhoferHHI. @ERC_Research fellow.
John Preskill @preskill
142K Followers 1K Following Theoretical physicist @Caltech, Director of @IQIM_Caltech, Amazon Scholar
Anthony Leverrier @letonyo
4K Followers 1K Following researcher on quantum error correction at Inria @[email protected]
Earl T Campbell @earltcampbell
4K Followers 624 Following Quantum wizardry // VP of Quantum Science @riverlane_io & opinions are mine // senior lecturer @sheffielduni.
Andreas Wallraff @AndreasAtETH
31K Followers 8K Following Research and education in #physics with a focus on #quantum #computing, #communication and #sensing with team @qudev @ETH_en. Director of the @ETHQuantumCntr.
Graeme Smith @quantum_graeme
11K Followers 9K Following Theorist at @QuantumIQC. Quantum information, quantum computing, science, parenting. @graemesmith.bsky.social.
Isaac Kim @Isaac__kim
4K Followers 452 Following Working on quantum information, computation, and many-body physics. Assistant Professor of Computer Science @ UC Davis.
Alvaro M. Alhambra @AlhambraAlvaro
1K Followers 582 Following Quantum physicist @ift_uam_csic . Will apply Cauchy-Schwarz for food.
James Wootton @decodoku
7K Followers 2K Following Helping to make quantum computers @IBMResearch. Occasionally misusing them for fun and/or science. Two Ts and no Es. All 𝕏cretions here are my own doing
Joe Fitzsimons @jfitzsimons
7K Followers 577 Following Physicist. Founder and CEO @horizon_quantum. Former @quantumlah PI and associate professor. Slowly drifting south-east (Dublin-Oxford-Singapore).
Felix Leditzky 🏳�.. @felix_led
3K Followers 1K Following Assistant Professor at @UofIllinois (Math) & @IllinoisQuantum member | Quantum information theorist | Vienna native | He/Him
Victor V. Albert @victorvalbert
3K Followers 605 Following Theoretical physicist @NIST, Fellow @JointQuICS, Zookeeper @theeczoo
Richard Kueng @RichardKueng
2K Followers 644 Following Quantum computer scientist @jkulinz, coin tossing enthusiast and armchair historian. Lived and worked in Switzerland, the UK, Germany, Australia and the US.
Bartosz Regula @BartoszRegula
758 Followers 224 Following Mathematical quantum information @RIKEN_en @RIKEN_QC 🇯🇵. A mathematician pretending to be a physicist or vice versa, depending on your point of view.
Robert Raussendorf @RRaussendorf
2K Followers 194 Following Physicist and quantum information scientist. I work on foundational questions in quantum computation.
Chris Ferrie @csferrie
9K Followers 61 Following Quantum theorist by day, father by night. Occasionally moonlighting as an author.
Marco Tomamichel @marcotomamichel
3K Followers 538 Following An information theorist at the quantum frontier at @quantumlah and @NUSingapore: opinions are my own
QIP2023 @qip2023
1K Followers 6 Following Official account of QIP 2023, being held Feb 04-10, 2023 @UGent - tag #QIP2023
Ben Brown @BenJamesBrown
2K Followers 412 Following Member of the Quantum Computing Theory Group at IBM Quantum. My research is mainly focused on quantum error correction and fault-tolerant quantum computing.
Joschka Roffe @QuantumGizmos
1K Followers 1K Following Quantum Error Correction Lead | Quantum Software Lab | University of Edinburgh.
Eliska Greplova @EliskaGreplova
2K Followers 1K Following Quantum Physicist @TUDelft, group leader, sci-fi aficionado, hiking the world. @[email protected]
Fernando Pastawski @FerPastawski
111 Followers 76 Following
Jacopo Rizzo @jacoporz
95 Followers 241 Following PhD student in quantum information theory @FU_Berlin | Eisert group
Chris Fechisin @CFechisin
110 Followers 236 Following PhD student @UMDphysics studying condensed matter theory and quantum info
Nelly Ng @NellyNgHY
172 Followers 132 Following Quantum information theorist and thermodynamicist, Nanyang Assistant Professor, NTU Singapore. Fond of good stories.
Robbie King @robbieking1000
689 Followers 500 Following PhD student at Caltech, working on quantum computing.
Balint Pato @balopat
988 Followers 546 Following Quantum error correction Ph.D Candidate @ Duke, Xoogler at Quantum AI
Gregory White @gregswhitenoise
702 Followers 517 Following 🇦🇺 Postdoc at FU Berlin, interested in all things quantum. Big cricket fan, occasional astrophotographer.
Jordan Taylor @JordanTensor
280 Followers 1K Following Researching tensor networks and quantum branching stuff. Soon: AI interpretability work
Jiaqing Jiang @JiaqingJ
212 Followers 243 Following Student interested in Theoretical Computer Science and Quantum Information
Felix Binder @FelixBinder
384 Followers 275 Following quantum physicist and information theorist at Trinity College Dublin
Zakaria Bouafia @Zakari_Bouafia
10 Followers 175 Following Ph.D. student in quantum information, FSAC, Hassan II University of Casablanca, Morocco.
Susane Calegari @susanecalegari
377 Followers 317 Following PhD candidate on #quantuminformation and #quantumcomputing @QuantinCTP, #Warsaw. Brazilian.Vegan.WhiteBeltBJJ • she/her
Ben Criger @BenCriger
657 Followers 1K Following #Mars100 - type guy but also physicist. Likes and RTs are not endorsements.
Zoltán Zimborás @ZoltanZimboras
614 Followers 588 Following Wigner's friend. Coincidentally also the Head of the Quantum Computing Group at Wigner RCP. Occasionally hired for the indirect observation of measurements.
Asad Raza @non_unitary
296 Followers 944 Following MSc Physics Student @FU_Berlin | prev: @ZapataComputing @CityUHongKong @GSoC @EntropicaLabs
liz (side b) @ineratium
266 Followers 31 Following
Colm Kelleħer @Colm12Colm
153 Followers 483 Following PhD student in quantum computing & mathematical physics. 🇮🇪 in 🇫🇷. Personal site: https://t.co/IB1HEGwxJV. He/him
Josu Etxezarreta @Katutxakur
203 Followers 534 Following PhD in Quantum Information Theory. Dealing with quantum noise. Rugby player. Rock&Roll. Opinions are my own.
Andrew Guo @imagAndrewGuo
265 Followers 287 Following Ph.D. Candidate at the University of Maryland, College Park studying quantum information science, quantum computation and quantum memeology
Stefan Huber (@sinh4@.. @SinH4
285 Followers 926 Following quantum info, maths, good beer/cider/mead, karate, speedcubing, speedrunning, and emancipation | lang: 🇦🇹🇩🇪🇨🇭🇱🇮 dialects, 🇬🇧🇫🇷🇪🇸🇳🇱🇷🇺 | he/they
Joey Tindall @JoeyTindall4
248 Followers 148 Following Postdoctoral researcher @FlatironCCQ working on many-body quantum physics
Quantum Morocco @QuantumMorocco
46 Followers 4 Following Quantum Morocco conference focuses on the recent developments in the field of quantum science, especially on quantum computing and its implementations.
Armando Bellante @ikiga1
692 Followers 1K Following ikiga1 | Quantum Computing | Hacking w/ @towerofhanoi & @mhackeroni | Proving stuff, reversing, pwning and travelling ❤️
DaSkrubKing @DaSkrubKing
10K Followers 189 Following Social radical, political progressive, economic liberal, sexual centrist • Data science + Econ student • "cruise missile liberal" • @pastel_dallas ❤️
Juliette Soule @JulietteSoule2
79 Followers 137 Following PhD student at the university of Sydney. Ultra/ trail runner for @BrooksRunningAu
Paul Skrzypczyk @PaulSkrzypczyk
1K Followers 886 Following Quantum physicist | Assoc. Prof @BristolUniPhys | Royal Society URF | CIFAR Azrieli Global Scholar | Author of Semidefinite Programming in Quantum Info. Sci.
serraerdamar @serraerdamar_
108 Followers 114 Following PhD student in the Murch Lab at WashU | Experimental Quantum Physics
Hsin-Yuan (Robert) Hu.. @RobertHuangHY
6K Followers 248 Following Thinking about how machines could discover new physics in our quantum universe 🎲 🎲 🎲
Ludovico Lami @LamiLudovico
874 Followers 275 Following Assistant Professor at QuSoft/University of Amsterdam. Succeeding at failing to understand quantum mechanics.
Campbell McLauchlan @Universal_Soup_
75 Followers 99 Following PhD student in quantum computing @Cambridge_Uni | Contributor to @PhysicsWorld | Sometimes dabble in physics videos and podcasts too
Dulwich Quantum Compu.. @DulwichQuantum
5K Followers 18 Following Parody quantum computing startup from South London
Jasminder Sidhu @sidhu_jasminder
262 Followers 596 Following Quantum technologist, currently postdoc-ing @PhysicsStrath (PhD @PhysicsShef, MSci @imperialcollege). Enjoy teaching (FHEA #highered), discovering unique beers.
Cole Maurer @CMaurer73
187 Followers 222 Following Seltzer Water Enthusiast // Quantum Error Correction @UNM
Maite Arcos @quantum_maite
50 Followers 130 Following Quantum information theory, quantum thermodynamics and quantum gravity PhD student at @uclquantum
Ángela Capel @AngelaCapelC
884 Followers 431 Following Assistant Professor of Quantum Info/Theoretical Quantum Computation at DAMTP, University of Cambridge. Working on quantum information and mathematical physics.
Aella @Aella_Girl
205K Followers 367 Following ⚜️whorelord⚜️, vexworker, survey artist, way too earnest Discord: https://t.co/S1MaMdCwyK
JuliaStackOverflow @JuliaOverflow
2K Followers 29 Following New questions about #JuliaLang posted to Stack Overflow. Powered by the @JuliaLanguage and Twitter.jl
Mauro E.S. Morales @Mauromsoler
117 Followers 1K Following Chileno. Postdoctoral fellow at University of Maryland, working on quantum algorithms and quantum complexity theory.
Tanmoy Biswas @tanmoy_on_twitR
14 Followers 136 Following
Basudha Srivastava @BasudhaSrivast1
134 Followers 163 Following Researcher in quantum error correction
Stefano Gogioso 🐙 @StefanoGogioso
3K Followers 468 Following Mathematician+Computer Scientist. Diagrammatic Programming is The Way 💻. Author of 'Quantum in Pictures' 📚. Lecturer in Quantum Computing @ Oxford 🎓.WHAAAAATTTTTTT?!!!???? just fell to the floor in walmart. begging the cryptography bros to verify this
"This gives a polynomial time quantum algorithm for solving LWE." Is this real?
I was fortunate to attend a workshop on quantum error correction at the Yukawa Institute for Theoretical Physics last week 🗾😁🌸 Thanks for Andrew Darmawan, @BBaragiola, and Yoshifumi Nakata for organising!
repeating the “fear is the mind killer” mantra to myself as i prepare to answer the question from the Russian physicist at the end of my talk
The week continued at gorgeous Banff with an excellent talk by Anirban Chowdhury about "Relaxations to local Hamiltonian problems"
You're not a true fan of the anime (my tweets) unless you have read the manga (my 110 page arXiv papers).
Biblically accurate tensor network. #QIP2024
what if we kissed next to the Riverlane error correction chip? 👀
#QIP2024 Tensor Network Decoding beyond 2D. Exciting results. By Christophe Piveteau, et. al.
Actual footage of our CEO and CTO.
In a surprise move, Alibaba abandons its $15 billion quantum computing project. The decision comes amidst U.S. semiconductor restrictions and internal reorganization efforts. What's next for Alibaba's tech ventures? ow.ly/Rr0450QepuI #QuantumComputing #HPC
normal person: *panics due to increasingly powerful AI* quantum info person: *panics about research funding drying up*
Rumor is that Q-Star figured out a way to break encryption, and OpenAI tried to warn the NSA about it. Here’s a Google doc link to a compilation of (allegedly) leaked documents and compelling analysis docs.google.com/document/u/0/d…
Reaching the final bits of my PhD... I Just got my thesis printed! Feels unreal to see it. This amazing cover was done by @gabrielsmnz
We've been working quietly on the Anniversary Edition of Braid for a **while**, but we can now announce that the release date is April 30, 2024. Here are some fun details: [1/n]
@QuantumMemeing @JoshKoomz @QuantumChubb *Laughs in tensor network*
QEC’23 in Sydney was a blast! I was most excited by talks on QEC with neutral atoms. I’m very honoured to have been identified as “the one in yellow with the hat” during Q&A. Looking forward to many more sartorial distinctions in future conferences! Also, wow Sydney! 🤩
@artix41 @QuantumChubb @mike_vasmer Well-written and interesting article! Also thank you and Eric for the web-based visualizing of topological codes, which makes it easy to explain excitation behavior in presentations.
@QuantumChubb we should start a company
@boundstate yes
@QuantumChubb I've had it independently confirmed that @QuantumChubb is actually the peak performance error correction theorist
Trends for United States
193 B posts
113 B posts
76,1 B posts
115 B posts
24,1 B posts
8.048 posts
118 B posts
85,7 B posts
270 B posts
10,1 B posts
92,7 B posts
18,4 B posts
68,7 B posts
11,7 B posts
8.841 posts
12,6 B posts
48,3 B posts
7.871 posts
56,7 B posts
72,8 B posts
You might like
Isaac Kim
@Isaac__kim
4K Followers
Stephen Bartlett
@BartlettQuantum
4K Followers
Victor V. Albert
@victorvalbert
3K Followers
Michael Vasmer
@mike_vasmer
2K Followers
Robert Raussendorf
@RRaussendorf
2K Followers
Nicolas Delfosse
@nic_delfosse
3K Followers
Earl T Campbell
@earltcampbell
4K Followers
Steve Flammia
@S_Flammia
3K Followers
Felix Leditzky 🏳�..
@felix_led
3K Followers
Marco Tomamichel
@marcotomamichel
3K Followers
Zoe Holmes
@qZoeHolmes
3K Followers
Frank Verstraete
@fverstraete
2K Followers
Josh Combes
@JoshKoomz
3K Followers
Ben Brown
@BenJamesBrown
2K Followers
Richard Kueng
@RichardKueng
2K Followers