[Half-Inch Stud]

ALL OF the above,

expensive wine.
expensive economy cars.
digital keyboards for music.
concept of Government making NEW laws each year.
School tax for public schools.
Why the Earth's core is still molten hot.
Why Saturn & Jupiter's core temperature is not discussed/taught.
How the Gravity geometric center-of-balance between Earth&Moon is on/at the Earth's surface.
How plantlife can survive/flourish with such little CO2 in the air.
Why rotary engine exhaust is more than 1000F hotter than 2&4-stroke piston engine exhaust.
Why Desmodromic valve-trains have not been more prolific on our V8s.
Why JESUS has not yet separated the wheat from the weeds.

well, no need for me to go on about it huh.