Quantum Bayesian Networks

October 17, 2017

Hartmut Neven’s impeccable taste for fashion

Filed under: Uncategorized — rrtucci @ 4:37 pm

Hartmut Neven is the impresario of Google’s quantum computing effort (Martinis’ Pomeranian dog, Qubit, is the real scientific master mind behind the operation. Martinis and his mules just follow Qubit’s orders). As far back as 2013, I have jested about Neven’s faith in the Everett many-worlds-interpretation (MWI) of quantum mechanics, a religion which I find ridiculous, with no physical evidence or utility. Today I’ve read a somewhat gossipy quantum computing article in the Wall Street Journal that confirms my suspicion that Neven’s faith in MWI remains steadfast 4 years later. Luckily, Neven’s bad taste for interpretations of quantum mechanics is more than compensated by his superb sense of fashion. The same WSJ article informed me of something that I have long wanted to know, the provenance of Neven’s magical sneakers: they are “Christian Louboutin sneakers”. Gone are the Silicon Valley fashion-challenged days in which all serious Silicon Valley entrepreneurs wore jeans and a black turtle neck to emulate Steve Jobs.

Possible captions

  • Google should force this man to wear a tie and suit
  • Microsoft stands no chance against the owner of Joseph’s magical multicolored dreamcoat.
  • Google’s German Michael Jackson doing the Google Moonwalk
  • Google’s Nevenator wishes you an “Hasta la vista Baby”
  • Martinis’ antiparticle, Martinis when he lets his hair down.
  • Now I am become Neven, the creator of many worlds.

More of my Neven blog posts.


February 25, 2015

Maybe You Should Believe Sean Carroll

Filed under: Uncategorized — rrtucci @ 5:35 am

3corcovado-sean-carrollPhysicist (cosmologist) Sean Carroll, a darling of the popular-science press, is a vocal atheist. Although he does not believe in the existence of God, because it’s an untestable theory, he does believe in the Many Wor(l)ds Interpretation of quantum mechanics (MWI), another untestable theory. In a recent blog post, Sean pities those who do not believe in the true interpretation, for they shall not see the glory of heaven. According to Sean, MWI is easily derivable, using only pure logic, from a few, very simple, widely accepted axioms. Sean has devoted considerable time and effort to proving the existence of many worlds and disproving the existence of God.

I’m afraid I’m one of those nonbelievers that Sean pities so much. See my opinion of MWI here.

Although I don’t believe in MWI, I do have a scientific religion, quantum computation. There is a big difference between QC and MWI, though. Quantum computation is a testable theory. Even better, its ultimate goal is to construct a tangible, physical machine. That machine is a God to me, a Deus ex Machina. I believe that this God/machine will descend from heaven (thanks to a handy crane) at the end of the play, and save the day, just in the nick of time, when the situation seemed all but hopeless.

August 9, 2014

New Study Shows that Quantum Mechanics Virus Affects 3 out of Every 5 Senior Americans

Filed under: Uncategorized — rrtucci @ 5:38 pm

There is a not-so-silent (in fact, quite vociferous and opinionated) epidemic afflicting senior citizens in America and Europe. Just look at the alarming data given below if you don’t believe us. It’s an epidemic of qMIV (Quantum Mechanics Interpretation Virus). qMIV is a highly contagious, airborne, Internet borne, you-name-it borne, pathogen for which there is no known cure. (Some people believe that building a quantum computer may be a cure or a palliative for qMIV, but, at the present time, this is mere speculation)

Symptoms: qMIV is an extremely debilitating disease. Like another old man’s disease called TP (Tea Party-osis), qMIV causes the patient to have severe difficulty getting any useful work done. The patient also tries to stop those nearby, especially those belonging to the “shut up and calculate” party, from getting their own work done.

The CDC (Centers for Disease Control) is advising young people: Stick to REAL physics, like Feynman’s Lectures or quantum computing (which Feynman invented). Do not read any documents carrying the qMIV pathogen. If you do, you will surely waste your time trying to make sense out of gibberish, and you may even end up contracting this dreadful old man’s disease.


qMIV is endemic to certain philosophically swampy regions of the blogosphere. Such regions breed large populations of mosquitoes that transmit the disease. The mosquitoes from those regions make a peculiar buzzing sound known as a blog comment. Some philosophically swampy blogs like Shtetl Optimized can have hundreds of comments per blog post, a truly deafening buzz.

To be fair, qMIV doesn’t only afflict old men. There are other human populations that are also acutely susceptible to it. For instance, the community of Philosophers has been decimated by the disease, probably because of an entrenched custom in that community to practice unprotected scientific thinking.

April 29, 2011

Don’t Shut Up and Don’t Calculate

Filed under: Uncategorized — rrtucci @ 10:03 pm

Those practically-minded, results-oriented physicists who prefer spending their time working out the predictions of quantum mechanics (QM) and comparing those predictions to laboratory data, instead of rambling endlessly about the philosophical implications of QM, are often said to belong to the “shut up and calculate” school. It seems to me that the advocates of the multiverse “many-worlds interpretation” (MWI) of QM belong to the less desirable school of “don’t shut up and don’t calculate”.

MWI was first proposed in 1957 by Hugh Everett. More than half a century later, it still hasn’t spawned any useful results. And that, in my opinion, is the biggest flaw of MWI: that it’s not very useful. Is it possible to explain or predict or calculate any laboratory observations much more simply or elegantly using MWI than not using it? No. Like I said before, useless.

The vast majority of people working in quantum computing have never used MWI in their work. QM can easily stand without MWI. I can’t stress this fact enough. I hope that those new to the field of quantum computing don’t get turned off from the field because they get the mistaken impression that it’s based on MWI.

David Deutsch claims that MWI is necessary in order to “explain” a quantum computer. He has no mathematical proof of this claim. He argues that the claim must be true because of philosophy (his philosophy). Yawn. He even claims that he has devised a test that singles out MWI as the one and only possible interpretation of QM. His test requires a bizarre self-aware quantum computer artificial intelligence. Nothing like proposing an impossible-to-do, cryptic experiment to prove your point.

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