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Comment Re:No commercial applications (Score 1) 59

Are you suggesting that Shor's and Grover's are the only possible quantum algorithms? I'm not holding my breath for commercial QC either, but I don't like being overly pessimistic or conservative either. Quantum computers now are a bit like the early electronic computers of the 1940s — proofs of a concept but not exactly commercial success stories. Sure, with those computers people could do the same old calculations much faster, but the really interesting and useful applications involved a bit more vision, and those didn't appear overnight.

While many people associate QC with breaking cryptography, in the end it's just a faster way to do classical math. There's a whole world of pure quantum problems that are more naturally solved with quantum computers; this is what Feynman meant when he conceived the idea of QC in the early 1980s. So instead of getting hung up on the number of qubits, consider for example what D-Wave is doing.

Comment Re: Standing Desks (Score 1) 88

I started using a standing desk soon after I quit teaching, and I guess there's a connection. But I also have some level of ADHD traits, and I find it easier to work on a computer if I can move around. I guess the commenters that don't understand standing desks have never used one extensively; the idea is not to stand in attention for 8 hours straight, but to allow your body some natural movement.

It also feels nice to sit down for a break, or for things like reading. I don't like the idea of moving the desk down to a sitting position, I'll much rather move myself somewhere else (undocking the laptop if necessary).

Comment Re:British slang (Score 1) 75

Apparently "boffin" is a British slang term for a scientist/engineer.

I recently watched a documentary on the British space program, and I recall someone saying something like "this project needs more engineers and fewer boffins". So "boffin" is specifically a scientist in an ivory tower, much like "egghead" in US slang.

Comment Re:"the most likely scenario is that it doesn't wo (Score 1) 75

29 is prime, and people don't usually talk about factoring primes because the factors are trivial.

I don't think Microsoft will let something as trivial as primality to get in the way of their quantum computing research. REAL men can roundhouse-kick any number into factors if they so desire.

"The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers." -- Bill Gates, The Road Ahead (1995)

Comment Re:Do not trust "quantum safe" encryption (Score 1) 35

Good points. I'm no expert in the field, but I've taken master's level courses in the relevant math and physics. I particularly remember my math professor saying that no encryption has been mathematically proven safe. We only know the current schemes are safe insofar as nobody has published an attack yet.

We do know how to break certain classical encryption schemes with hypothetical quantum computers. This clearly doesn't mean other schemes will stay quantum-unbreakable forever, because people keep inventing new algorithms. So "quantum safe" only applies in a very limited sense, until the day they are broken.

Comment Re:400MW what? (Score 1) 89

Is thet number thermal output or Electric? I'm no expert put afaik it's a rather significant difference

Net electric, it's in the fscking summary:

Overall, the present design of ARC is expected to produce about 1.13 GW of fusion power, with 500 MW of that extracted as electricity. Some of that (100 MW) will be needed to power the plant's operations, leaving 400 MW to be sent to the grid.

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