Mantle plumes explain Hawaii, Yellowstone, Iceland, the East African Rift, the Adirondack uplift, the Permian extinction, the decline of Rome, the DB Cooper hijacking, and the balrog in Moria. Those little hills of sand in your yard are caused by antle plumes.
Welcome to the Linguistics Department - It has been [2] [DAYS] since someone noticed that the Biology Department sign has a one-day-long singular/plural disagreement after it resets.
The draw-by-repetition rule does a good job of keeping players from sliding a tile back and forth repeatedly, but the tiles definitely introduce some weird en passant and castling edge cases.
It is actually true that the measurements used for lumber refer to the "unfinished" size and commercial boards have been milled to different dimensions. It's like how a "1/4 lb burger" refers to the pre-cooked weight and if you order one in a restaurant, it will be smaller than 1/4 pound.
(In the old days, you would buy rough-hewn boards that actually were 2x4 or whatever and then the carpenter would cut the board down to make it nice and square and smooth. Industrialization led to them selling boards that had already been finished, but they needed to be smaller for reverse compatibility)
My son just got a measuring tape that is marked with the period of the pendulum formed if you lock the tape off at that length and hang it by metal hook.