For his solutions: "Brain drain" is what we had been doing for the past 80 years or so. It worked great. We're specifically driving people away now. "Gold standard" is an idea every sane economist rejected decades ago.
I don't think any sane economists have ever "rejected" the gold standard, it is known to work. Pretty much any empire ever founded was built on a gold standard. The US jumped away from it because they were going to go bankrupt and picked a system that put the pain off until a later date. Now, 50 years later, they appear to have lost the title of the world's major superpower.
It is relatively unusual for effective economic ideas to gain any traction in politics. It seems to be partially random whether a specific policy gets a tick or a cross when an economist is asked about it.