Rediscovery: a reasonably good RNG in under 300B of brainfuck code:
>>>+++[<+++++>-]>+[<[-]<[>+<<<+>>-]<<[>>+<<-]>>>[<<<+>>>-]<<<[>>>++<<<-]>>>[<+>-]<[>+<<<+>>-]<<[>>+<<-]>>>>>+++++>+<[<<<<<+>>>[>>>>>+<<<<<-]>>>>>[-[-<<<<<+>>>>>>]<]<[>]<<-]<<<<<[>>>>>+<<<<<-]>>>>>>-<[-]<<[<->-]<<[>>+<<<+>-]<[>+<-]>+>>[>>>>>+<<<<<-]>>>+>>[-[-<<<<<+>>>>>>]<]<[>]<-<<<[<+>-]<.>>]
