Currently in desktop CPU manufacturing, there are only 2 companies that hold practical all of market. I have read it is because Intel and AMD own licenses to x86 and x64 architecture ( Lets assume VIA is non-existent). Now if a new company wants to make CPUs they need to make some new CPU architecture or get the licenses, as far getting licenses goes I don't think Intel or AMD, particularly Intel, will ever want a competitor to the market. So only option left is to make a new architecture which is also impossible as it would require entire uplift of PC market like new motherboards, compilers, OSs and other essential software. If that is not enough that new architecture need to have significant improvements over existing ones for obvious reasons. In conclusion, I don't see any of these things happening unless tech giants like Apple, Google or hardware manufacturers like Qualcomm (I named them because they make mobile CPUs and are only inhibited by Intel into entering PC market) made it their "do whatever it takes" goal and invested sh!t ton of money into it. So the question is whether it is possible to break monopolies of Intel and AMD in CPU market ? Or we are struck with AMD and Intel until end of time ?