It’s both lack of competition and the end of Moores law. We’ve effectively reached the end of silicon gate sizes and the tooling complexity required to keep shrinking process nodes and increase transistor density is increasing exponentially, so semiconducters no longer get cheaper… and it’s starting to push these cutting edge nodes outside of economic viability for consumer products. I’m sure TSMC is taking a very healthy profit cut for sure but the absolute magic they have to work to have 2nm work at all is beginning to be too much.
“Hey, I’ve seen this one before!”
“What do you mean? It’s brand new!”