Earlier quoted context omitted.
I'm a little surprised how many Chromium browser builders we have in the market, and how each continues to convince a group of investors that _they_ are going to be the ones to finally get it right, while still building on Chrome's skeleton. But, there's a bunch on WebKit and Gecko as well.
On the other hand, it's kind of crazy no one can make an OS except Windows, Apple and Google? Trillion dollar market and no one can compete.
And that’s not even covering the numerous hobby OSs out there like Haiku, SerenityOS, ReactOS, TempleOS, SkyOS.
Then you have experimental OSs like Singularity too. There’s numerous examples of them alone but I think you get my point. :)