You've been through this before and have the scars or have seen them on others. It is hard to explain to those who have not. Though they only need look at a historical chart.
The article says:
In December, an internal Nvidia memo seen by CNBC said, “Elon prioritizing X H100 GPU cluster deployment at X versus Tesla by redirecting 12k of shipped H100 GPUs originally slated for Tesla to X instead. In exchange, original X orders of 12k H100 slated for Jan and June to be redirected to Tesla.”
The assumptions are that more compute (energy, chips) is needed to get more capable models AND more capable models will result in more spending by companies. That has been correct so far.
Yes, energy and chips are some of the bottlenecks. SpaceX has a potential solution (solar powered data centers in orbit) where they are uniquely advantaged - no one can launch as much or as cheaply as they can.
Re your first statement, the problem is that there isn't enough compute out there. xAI built their own data centers (and plan to built more -> in orbit). I don't think Anthropic has done that to the same extent and it seems like they will partner with multiple vendors who can provide the compute they need.
There were talks in the past about spinning Starlink out. Perhaps the thinking that led them to keep Starlink in is the same thinking about their new data center business (what they got from xAI and will grow in orbit in the future)