Choose Boring Technology (2018)
The points often lost here is that (1) this advice is aimed at startups, and (2) the whole concept of "innovation tokens."  Any successful business is going to solve some problem which is probably not so obvious and that takes innovative thinking.  If you're spending too much time trying to be innovative with your tech stack then you're NOT innovating on your specific difference as a business, and that hold you back (or could bankrupt you).All of that said, today's tech landscape is far less edgy than the early days of cloud, NoSQL, and NodeJS.  I'm not even sure what tech is out there that would qualify as "spending your innovation tokens" other than AI.