Invisible schrieb:

> The last set of traffic lights I stopped at doesn't even detect whether 
> there's any traffic. The lights just change every 45 seconds. Even at 
> 2AM when there are no cars, every 45 seconds the lights change. What do 
> you need a computer for?

But you do know that there /are/ traffic lights that are a bit more 
sophisticated than that, no? ;-)

Some cities actually have all their main roads' traffic lights networked 
somehow.

> I guess it depends on whether you're talking about *computers* not 
> working, or "anything that requires electricity".

Now if a computer /hacker/ can down a power grid (as has happened 
already; or was it a virus? Don't recall), then one is not so far from 
the other, is it?

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