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Comment Re:Python ? (Score 4, Informative) 72

What you don't understand is the Python is often used as a method of invoking libraries that are written in more efficient languages. And for the layer that it handles it doesn't introduce unacceptable inefficiencies. E.g., you wouldn't want to do ray tracing in Python, but it's fine for calling a library that does that.

Comment Re:"the most likely scenario is that it doesn't wo (Score 1) 72

I'm quite sure quantum computers are valid. Whether they're useful is another question. I'll agree that it's not clear that general purpose quantum computers will ever be useful. (I won't agree that it's clear they never will be useful.)

OTOH, specialized quantum computers are already useful. DWave sells one design.

Comment Re:Dictators (Score 3, Informative) 55

The restrictions are a mix of reasonable nuisance management and paranoia about who is flying drones, what they can do, and chain of custody.

Beijing proper is a city with a population density of over 21,000 / km^2 -- so you can imagine the chaos if any tech enthusiast resident could fly a drone without a permit. Except for a couple of free zones in the outer boroughs, New York City restricts drone launcing and landings within the city to flights with a permit and flight plan, because otherwise the sky would be black with drones. Many cities -- both red and blue -- have zone restrictions for drone flights, and those currently hosting World Cup matches have tightened them for the duration of the tournament.

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