Kildall may have also invented ghosting.
I remember watching a documentary. IBM officials showed up at Kildall's house twice to convince him to sell/license CP/M to them. Pre-planned meetings. He ghosted them both times. One of those times they waited hours for him.
Lol. I'm sure you're kidding, but let's be clear: he didn't invent ghosting. He invented a lot of really cool stuff.
There's a lot of mythology around Kildall and IBM. I'm sure some it it even aligns with the facts but I don't put that much stock in many of the stories and theories.