When unable to tell the difference between a bone and a rock in the archaeological field, it’s not uncommon to press it to one’s tongue. If it falls, it’s a rock, and if it sticks, it’s bone.
I think it's 10^8 instead of 108. That way it would make sense.
#4 somehow doesn't make any sense
The national nut is Trump
Technically, everything you see & hear is from the past.