Lots of places also have variable limit signs that get updated based on traffic, accidents etc.

Here in NZ those seem to all be marked on the speed limit maps as 100km/h even if in some places the signs never go above 80.

Ngauranga Gorge is one such location and I believe has the country’s highest grossing speed camera.

“Greater Canada”.

Everything burns up regardless of size. Big things might not finish burning by the time they hit the ground.

You need either enough thrust to slow you to ~mach 2, or a heat shield to do the same by aerobraking.

It’s called aerobraking for a reason: you’re using friction to turn kinetic energy into heat to slow down, but that heat goes into the air and your heat shield instead of brake pads and rotors.