What Quantum Computing Isn't | Scott Aaronson | TEDxDresden

What Quantum Computing Isn't | Scott Aaronson | TEDxDresden

Quantum computing, a subject as fascinating as it is intriguing. To many also an incomprehensible one. Do you know what a computer is? And what it isn’t? In his fascinating and entertaining talk, Scott Aaronson elucidates the potential and the limits of quantum computing. In a sober fashion, he gives an overview of the state of research, telling us not only what we could expect from quantum computers in the future, but also what we probably shouldn’t. Scott Aaronson is the David J. Bruton Centennial Professor of Computer Science at The University of Texas at Austin, USA, and director of its Quantum Information Center. He is well-known for his “complexity zoo,” which helps to classify problems that can be solved by computers, both quantum and classical, according to how hard it is to solve them.

Scott is an accomplished academic researcher who published dozens of influential papers and won various notable awards, like the Alan T. Waterman Award in 2012. Before his current position at UT Austin, he taught at the Massachusetts Institute of Technology for nine years. In 2004, he received his Ph.D. from the University of California at Berkeley and held positions at the University of Waterloo and the Institute for Advanced Study in Princeton.

Furthermore, Scott is well-known for his ability to explain complex topics in quantum computing to a general audience. He writes a popular blog, “Shtetl-Optimized,” has composed several famous essays, co-authored webcomics, and published a book “Quantum Computing since Democritus.” This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

50 Comments

  1. batcathatsatchat on December 9, 2019 at 7:15 pm

    Scott Aaronson is a breath of fresh air when it comes to explaining QC. It was painful to watch the Microsoft keynote a month or two ago where the "parallel solutions" explanation was given several times as the power of QC.



  2. ian kane on December 9, 2019 at 7:15 pm

    Very insteresting topic, but this guys seemed like he was nervous or something. It was hard to watch at points.



  3. imbatman8472 on December 9, 2019 at 7:15 pm

    uuuuuuuuuuuuuuu



  4. Álvaro de Bazán on December 9, 2019 at 7:16 pm

    They discovered there are neurons in the gut. The beer belly makes this man a genius.



  5. Crystaldish60 on December 9, 2019 at 7:16 pm

    Excellent talk! It’s good to hear someone from the cutting edge explain things in layman’s terms rather than relying on science writers or journalists to do it.



  6. Dan Jakeway on December 9, 2019 at 7:17 pm

    Is Isaac Asimov your biological father?



  7. Deep Learning Partnership on December 9, 2019 at 7:19 pm

    Good talk.



  8. Gabriel Kellar on December 9, 2019 at 7:19 pm

    Uhuhuhuhuhuhuhuuuuuhuuhuhuhuhuhuhuhuhuh



  9. Fact Sheet on December 9, 2019 at 7:22 pm

    Did this dude take a Viagra pill before his talk or…



  10. Pedro González on December 9, 2019 at 7:24 pm

    La verdad siempre esperé gue Dios la revelaría un día tantos años en secreto siempre acompañado por aviones y helicópteros siempre que salía en el mayor secreto le doy gracias a Dios por la verdad gracias Pedro x desde Miami



  11. Claire Molleman on December 9, 2019 at 7:26 pm

    This is the first talk about quantum computers that shed at least some light on this topic. Great talk, thank you very much !



  12. Paul Berg on December 9, 2019 at 7:27 pm

    Yes, the topic he’s talking about it so interesting but this guy has zero speech skills, is very annoying.



  13. Dan Jakeway on December 9, 2019 at 7:28 pm

    Long story short, quantum computing is asking the question, "What is the useful purpose of life for the cosmos beyond its magnificent beauty?"



  14. Jeff Mutonho on December 9, 2019 at 7:28 pm

    Fantastic!



  15. Korakys on December 9, 2019 at 7:29 pm

    Quantum computing is something I kind of want to grasp at least the outlines of but often end up chucking in the too-hard basket. Short explainers like this help me, so thanks.



  16. Pablo Gutierrez on December 9, 2019 at 7:30 pm

    Scott, great talking !!! Very good in explaining something that everyone is filling their mouths saying it’s magic!!!!!!!



  17. Edan Maor on December 9, 2019 at 7:30 pm

    Excellent and interesting talk!

    I wonder – is there anyone working on the so-called non-conservative hypothetical of – what happens if quantum computing can’t be done? I mean obviously the way in which things fail will be informative, but I wonder what are the serious theories *against* quantum computing working, and if there are any, would they be testable in some other way?



  18. Mr Kwits on December 9, 2019 at 7:31 pm

    Would love to be that person sitting next to him on the airplane…



  19. qualquan on December 9, 2019 at 7:32 pm

    not too good



  20. s Flashi on December 9, 2019 at 7:35 pm

    Aaaa aaa a a aaa ok a aaaaa a aa a aaaaaaaaaa a a. A aaaaa a a aaaaa a a a a aaa a a a a so ok a aaa a aaa a aaa aa aa aa a a a a a ummm a a a a a aaaaaaaaaaa a a aa a aa a a aaa a a a a a a a aaaa aaaaaaaaaaaaaaa a aa a a a a a a a q q a a a a aaaa a aaaaaa so aaaa aaaaa aaaaa aaaaa aaaaa aaaaa a a a a a a a a a a a a aa a a a a a aa a a a a a a a ok so a a a a a a a a a a a a a .



  21. YNVNEone on December 9, 2019 at 7:35 pm

    Uh-uh…word….uh uh uh ….word.word….a uh uh um um a uh uh….word.word…..uh uh uh um uh ah ah uh uh…….



  22. Phillip Dingus on December 9, 2019 at 7:38 pm

    i like his shirt



  23. Jon Allen Seecam on December 9, 2019 at 7:42 pm

    Attractive guy!



  24. Pedro González on December 9, 2019 at 7:45 pm

    Gracias todo el universo es vidad inteligente total millones de años y que evolución gracias Pedro x desde Miami



  25. randy arellanes on December 9, 2019 at 7:47 pm

    This guy like all the rest who get up in front of a bunch of people and try to make some sense of quantum computing. They really don’t know what they have or its true intention they stumble over themselves to convince people that it’s a good thing, what they don’t believe is the chaos quantum computing is going to lead too.



  26. Dan Jakeway on December 9, 2019 at 7:47 pm

    Is the purpose of each one’s life relative to the natural destination of goods according to God’s very Holy Catholic theology which we have been saying repeatedly over, and over, and over again for thousands of years in perfect succession of honest Jewish traditions?



  27. Ali Badger on December 9, 2019 at 7:47 pm

    Fantastic talk!



  28. Bullitt D. Bourbon aka Elle Ko on December 9, 2019 at 7:48 pm

    Rather than disproving something people say, how about setting the goal to understanding how quantum particles work. It is science afterall. He himself ended the talk with advocating accurately learning & reporting, there’s a lot of dishonesty going on.



  29. Sai Srikar Gollamudi on December 9, 2019 at 7:49 pm

    Great Video, by the way Google has launched it’s 72 qubit machine in March 2018.



  30. Jon Allen Seecam on December 9, 2019 at 7:49 pm

    Cool dude



  31. Ricky on December 9, 2019 at 7:50 pm

    this guy is our hero



  32. Justin LaReau on December 9, 2019 at 7:52 pm

    Ugh ugh ugh ugh ugh ah ugh ah ah ugh ah ah ugh ugh…… can a quantum computer count how many times this guy says ugh ugh ? God it’s painful to listen to this guy. Learn how to give a presentation or take a class on public speaking.



  33. Danny Morrissey on December 9, 2019 at 7:52 pm

    Micro dosing is bad for you…



  34. Raul A. Ocasio Gonzalez on December 9, 2019 at 7:54 pm

    In 1969 everyone though that before 2000 we will live in other planets, but we are very far from that. Quantum seems more like a dream than a fact, controlling energy at such deep details is kind of science fiction.



  35. Kallyjon on December 9, 2019 at 7:57 pm

    swing arms and rock from one foot to another, looks like he about to pop in and out of existence, is he alive or dead?



  36. Jim beam on December 9, 2019 at 7:57 pm

    He is not nervous 😬.. it’s his shtoyl…he is varsity professor and has great public speaking skills. See his other talks



  37. Jon Allen Seecam on December 9, 2019 at 7:57 pm

    Entertaining!



  38. Peter Morgan on December 9, 2019 at 7:58 pm

    Perhaps we could agree to call it "Hilbert Computation", given that it’s all about Hilbert spaces and the non-commutative algebras of operators that act upon them, not specially about woo-oo quantum theory? One has Hilbert spaces and non-commutative algebras of operators in classical signal analysis, for example, because of the omnipresence of fourier analysis, so that could equally well be a model of the Hilbert space mathematics. Hilbert computation perhaps should be taken to imply that we use mostly or only projective operators, so it’s a particular restriction away from signal analysis in full generality, but hey. But then, QFT=signal analysis —modulation of the vacuum state and measurement of those modulated states— is my thing.



  39. Takuya on December 9, 2019 at 8:00 pm

    Who did he refer to as not embracing the future?



  40. Satoshi Analysis on December 9, 2019 at 8:01 pm

    quantum computing is a scam



  41. FadoodleX on December 9, 2019 at 8:04 pm

    I divided the video into 30 second segments, chose six of those randomly for detailed analysis of the number of "uuuu"s and "um"s, and extrapolated to the full video length. My estimate is about 200 "uuu"s and "um"s, with standard error +/- 20. Not bad, but probably not close to a record for a TEDx talk.



  42. Ahmad A. AM on December 9, 2019 at 8:04 pm

    Am I the only one who thinks this guy is freaking hilarious ? hahahahahahaha



  43. Peter Petrov on December 9, 2019 at 8:05 pm

    This guy is hilarious! "But why is he pacing back and forth and saying ugh all the time" some would ask. Ugh because on planet Earth humans express emotions and make jokes; it’s hard to explain. It’s not a cause for concern though.



  44. Kevin Oduor on December 9, 2019 at 8:06 pm

    UUUUMM UUUUMM M AAAAA



  45. YNVNEone on December 9, 2019 at 8:07 pm

    Ahahahahaha…..



  46. Billy Idolman on December 9, 2019 at 8:08 pm

    I love this guys’ excitement/passion and him taking the time to go over “basic” stuff to him in a way that is still sensitive to the needs of the beginner or intermediate



  47. Charles Bingham on December 9, 2019 at 8:09 pm

    I love it
    More exciting if it doesn’t work
    Re write all the physics books



  48. Jon Allen Seecam on December 9, 2019 at 8:09 pm

    It doesn’t lie



  49. joeltemp on December 9, 2019 at 8:11 pm

    Thanks for an interesting talk!



  50. Texan Tom on December 9, 2019 at 8:12 pm

    Ok n what about d-wave and Geordie Rose in his explanation and I quote " what the machine does is extract resources from these other parallel dimensions or universe" ??? My problem is he’s the only one that talks about what these things do in that regard nobody else has touched on this!!