OP, if I gave you $6B today, told you to spend it all over the course of the next 4 yrs by creating a company from the ground-up, hiring the thousands of engineers needed to design a competitive GPU (competitive with what the competition will be fielding in 4 yrs, not good enough to be competitive with what they are fielding
today), buying licenses to the IP necessary to support DX9/10/11/12 and so on, building a support team, software driver team, AIB relations and support, etc...and let's say by some miracle you actually did it, 4yrs from now you have a chip that is competitive...what is going to be the ROR (rate of return) on my $6B investment into your business venture?
Have you seen the profit margins for AMD and Nvidia? After 4yrs my $6B would be gone, paid out in salaries, depreciated equipment purchases, and licensing fees, and it would take you 15 yrs to simply recoup my initial investment (if profits are a consistent $100m per quarter) let alone to actually generate a positive return on my money.
And what would be my ROR had I simply invested that $6B into purchasing Nvidia stock, or Intel stock (no one in their right mind would purchase AMD stock, so let's not go there

)...or investing the money in many other "safer bets" that can be made?
$6B * 19 yrs @ 3% = a veritable buttload more money than I'd get by starting a new GPU company.
The world isn't lacking investors with $6B to invest in such an endeavor, the problem is that the world has a plethora of more lucrative and lower-risk opportunities for investors with $6B to pursue.
The proof of the pudding is in the eating...do you see Warren Buffet investing in GPU businesses? or do you see him investing
billions into banks? :hmm: