The prices may be there, but that does not mean supply is able to pick up. There are non-monetary barriers to entry the market. Knowledge, access to tools and m

The prices may be there, but that does not mean supply is able to pick up. There are non-monetary barriers to entry the market. Knowledge, access to tools and materials, permits from gov agencies, source of water, power etc. And the time scale to establish new capacity from scratch is many years to a decade or more. Look at the capacity build up in China. It has taken decades, and that is with all the power of the nation, and in some cases loose on regulations regarding IP rights.