tetris11

>>> 0.1 + 0.2
0.30000000000000004
>>> 1e16 * (0.1 + 0.2)
3000000000000000.5

Yes.

I liked the idea of inheritance when you need to define a single thing and spawn it multiple times, but each class required exceptions, too many overrides to count, and usually I would spawn a thing either once or twice in my code, or 15000 times - neither scenario being optimal to having that many objects floating independently about. Sometimes an assoc. array is all you need.