> It seems there is a huge opportunity for disruption in the computing/OS space. Why are there so few companies working on this problem? What are the main chall

> It seems there is a huge opportunity for disruption in the computing/OS space. Why are there so few companies working on this problem? What are the main challenges? It is a huge opportunity... but at great cost... A company/country may want to develop their own OS. They can either write the Kernel themselves, which is an enormous task. OR they can just use the freely available Linux kernel. So most companies just essentially fork Linux... Developing an alternative Kernel is the main problem, and not really a problem worth solving. The Linux Kernel is 15+ million lines of code now, and would cost an enormous amount of effort to reproduce (re-solving the same problems Linux faced). Companies eventually come to the conclusion that using Linux kernel is the opportunity to develop an OS... which is why there's thousands of actively developed Linux distributions [1] ... [1] https://distrowatch.com/ https://distrowatch.com/