What are speed limits, exactly?
I know … a number on a sign.
But why pay any attention to them?
I mean, assuming there isn’t a cop around?
They’re not much use as far as advisories about the maximum safe velocity for a given road. If they were, then everyone (just about) wouldn’t be driving at least that fast.
Probably, they’d be driving slower.
If speed limits meant anything substantive, that is.
Like the redline on a tachometer, for example. That is a real limit.
Most people do not run their engines at or even near redline for more than brief moments. Because the red line is the fastest you can safely spin the engine without risking engine damage.