I think it’s telling that none of his talks even make it all the way through his SOLID acronym, he sorta just trails off when he’s out of time.

His ideas were real big in the ruby community back when I was learning it, and if I ever go back that code is such a pain to work with. Almost impossible to follow the logic, inheritance everywhere, and I even thought metaprogramming was a good idea. Tests are the only reason that code has any reliability at all.

Now most of my code is procedural or functional, favors composition over inheritance, and is colocated as much as possible.