I believed this idea of kids = dead dreams for a long time. I don't think it's true. I think the author of the blog is letting his particular interests and cherry-picked examples cloud his judgment.

If you look beyond the narrow sphere of technology and founders, you'll find many of humanity's greats had kids, or more broadly, family responsibilities, at some point. Their ability and involvement as parents varies widely, but this idea that kids are some kind of an inevitable death-knell for "being successful" or renowned whatever that means, isn't true.

An alternative lens would suggest that having kids reveals a lot about life that you can use in your other pursuits.

Your kids also eventually become adults, at which point the demands likely lower significantly.

Just like the "starving artist" myth, it's mostly baloney hyperbole that people promulgate because there's some obvious basic truth to it, but it isn't a law of the universe by any means.