APL! I wanted something completely nutty that would change my way of thinking. The characters are kinda fun and you pick them up after really drilling them for

APL! I wanted something completely nutty that would change my way of thinking. The characters are kinda fun and you pick them up after really drilling them for 3 days or so. Then you begin to learn to read trains and things. It’s a really fun language. That and I’m learning condensed matter theory from Altland. Can’t recommend this text highly enough.