They can't bring themselves to put so much money into it that it would be an obvious fail if it didn't work.
However the amount of resources at stake is incredible. The delta between NVIDIA's value and AMD's is bigger than the annual GDP of Spain. Even if they needed to hire a few thousand engineers at a few million in comp each, it'd still be a good investment.
They can't bring themselves to put so much money into it that it would be an obvious fail if it didn't work.
https://www.datacenterdynamics.com/en/news/microsoft-bought-...
And probably not putting enough money behind it... it takes enormous courage as a CEO to walk into a boardroom and say "I'm going to spend $50 billion, I think it will probably work, I'm... 60% certain".
Whereas AMD's CEO was appointed, and can be fired. Huge difference in their risk appetite.
I'm reminded of pg's article "founder mode": https://paulgraham.com/foundermode.html
I think some companies simply aren't capable of taking big risks and innovating in big ways, for this reason.