knavely
Just some quick search result papers: property testing for race conditions https://smallbone.se/papers/finding-race-conditions.pdf
Testing telcos https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.14...
Direction is more important than speed. If you are running in the wrong direction it doesn't matter how fast, or if you come in on the weekend. If you are headed in the rigt direction then speed and velocity can be important. It's easy to want to believe that success is repeatable and due to an observable formula...
I am also not saying he is wrong of course... But I have noticed similar pessimism since 2012. People justifying being unadventurous with "the bubble is gonna burst soon. I have lived through it before."
I wonder where else there can be growth though?