Every obstacle he talks about does seem daunting, and yet I had the same reaction: "haven't we been hearing this for decades?" The most persuasive argument is

Every obstacle he talks about does seem daunting, and yet I had the same reaction: "haven't we been hearing this for decades?" The most persuasive argument is the one that he puts in the beginning; at the current rate, we are fast approaching the point where there are no companies left who can afford a new fab.