A tablebase does include every possible move from every possible position. There are many transpositions, saving space but still every single possible line from

A tablebase does include every possible move from every possible position. There are many transpositions, saving space but still every single possible line from a position is represented in a tablebase. How is that different from every possible game from that position? A 6-piece tablebase is 150GB. A 7 piece is 18TB. An 8 piece is thought to be 2PB, but we don't have one yet. How big do you think a 32-piece tablebase will be?