There is a specific piece of evidence that GPT-3 and the events of the last few years in deep learning added: more compute and data are (very likely) keys to bring transformative AI. Personally, I decide to do a focused bet on who produces the compute hardware. After some considerations, I decided for Nvidia as its seems to be company with the most moats and that will benefit more if deep learning and huge amount of compute is key to transformative AI. AI chip startups are not competitive with Nvidia and Google isn’t interested/doesn’t know how to sell chips.
Investing into FAANG because of the impacts of transformative AI is not a direct bet on AI: the impacts are hard to understand and predict right now and it is not a given that they will increase their revenues significantly because of AI. They already have a business model, and it isn’t focused on AI.