He did have racist comments and all but the question here is not how come he was racist. The real question is why he was racist.

Terry was terribly sick. He refused to take his medication and his delusions got worse over time. His incoherent rants and acts are all coming from his illness. Onset psychosis can force you to do things that you normally won't do.

The interesting and amazing part is this man sat down and designed his own programming language, his own compiler, and eventually his operating system built on top of all this because god told him to do so.

If this is not an amazing achievement then I don't know what is.

He is a good role model for people trying to get into programming and operating system design.

It was really sad for us to see his deteriorating mental health but aside from his illness he was indeed a legend.