Nearly as unbelievable, the other way to distribute software was to publish in gaming magazines.

Yes, all the code was printed onto the pages of a magazine. And then young nerds bought these magazines and spent days or weeks manually typing in and debugging the hundreds of lines of BASIC to run some game. And then the magazine would be passed onto the next nerd, like comics and pornography.

My own miserable system was a TI 99/4a with a cassette player for data storage. It sounded like a dial-up modem. I typed in a lot of programs and stored them on tapes. Then I started tearing the developed work apart and building my own stuff. It was years before I could call myself a programmer. (I was twelve.) Line-number BASIC sorta ruined me, actually. Learning about object-oriented functions was quite difficult after starting out with GOTO and GOSUB.

I’ll go farther and say that its wrong. Evolution may be a random walk, but random walk is a method of getting places. Evolution random walks to the next needed feature. Evolution is not at all blind.