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Comment: Re:Copenhagen interpretation != less complicated (Score 1) 155

by Cyberax (#48635971) Attached to: Quantum Physics Just Got Less Complicated
Non-locality means transmission of information with faster-than-light speeds (essentially, from future to past). To preserve causality you have to impose limitations on this transfer and these limitations are even more magical (see: "superdeterminism"). See my explanation at http://slashdot.org/comments.p... for an example.

Comment: Re:Copenhagen interpretation != less complicated (Score 1) 155

by Cyberax (#48635907) Attached to: Quantum Physics Just Got Less Complicated
It doesn't matter. A pilot wave is a type of a hidden state, in such theories particle take a unique way determined by a pilot wave.

Think about it - how can a pilot wave communicate which way a particle must take without going backwards in time (i.e. violating the Lorentz invariance)? Imagine that you have a classic two-slit single electron interference experiment. Suppose that the pilot wave theory is true - in this case a pilot wave interferes with itself and electron chooses one path and ultimately hits a scintillating screen where it's detected as a particle. For an external observer it would look as if a particle interfered with itself. So far so good.

However, let's add another twist - suppose that there's a device (a simple metallic screen) that blocks one of the paths that the electron can take _after_ flying through the slit - this device will cause the interference pattern to disappear (and this was checked by experiments!). However, how would an electron "know" about it when it flies through two slits? Moreover, we can complicate the device by making the screen move and block one path only after electron flies through the slits (it's complicated to do with electrons but it's essentially what happens in the delayed choice quantum eraser experiment). Somehow the pilot wave must provide information to the electron from its future!

Comment: Re:does that mean American workers? (Score 2) 122

by Cyberax (#48593821) Attached to: Canada Waives Own Rules, Helps Microsoft Avoid US Visa Problems
Unlikely. L1 transfers can work just as well for companies in Europe or Asia. A couple of my friends immigrated in the US by creating a company in the US and a local subsidiary in Ukraine, then they simply transferred to the US after 1 year (and it's totally legal). So why Microsoft would need to move workers to Canada first if any other country is sufficient?

More likely Microsoft said something like: "Either we cut 1000 positions in Canada or you allow us to bring temps. Your choice."

Brain damage is all in your head. -- Karl Lehenbauer

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