Suddenly the world's richest men are spending their wealth on advanced AI startups. How is this such a sudden phenomenon?

We've seen this with:<br>- Google DeepMind (founded in 2010, made wildly profitable by 2014)<br>- ChatGPT (founded in 2015, became wildly profitable by 2022)<br>- Claude (founded in 2021, became wildly profitable by 2022)<br><br><br>They all start with a group of highly skilled computer science engineers and a large fortune from companies like Google or Microsoft. But why all the sudden is everyone getting in on this? What changed?