"With dozens of groups working on the problem and an eventual market worth probably $1 trillion I have no doubt there will be a solution within the next couple

"With dozens of groups working on the problem and an eventual market worth probably $1 trillion I have no doubt there will be a solution within the next couple of years." - people have been saying effectively the same thing about fusion for 50 years, and it still hasn't happened. Just because something would be nice doesn't make it possible or likely it will happen soon.