"It is impossible to predict what will be hot in six years (also, six years?)"
Not my question. My question was about the rate of change. And obviously it would be ridiculous to expect anyone to accurately predict what will be popular in half a decade or more.
But I'm asking about the rate of change. This can be as simple as saying, "Cloning was a hot skill 5 years ago, but now it's worthless because chemical synthesis is about to supplant cloning and people will just buy a gblock of whatever genetic construct they want." (This is just a made up example.)
"(also, six years?)"
...Yes? Go look up your program and tell me six years isn't a good approximation of whatever number they give you for earning a phd.
"Instead, study what interests you and learn the techniques that will help you examine your topic of interest with the highest resolution."
Thank you, but:
1. I'd still like to be aware of how my job sector works.
2. You can't just say "Go with the technique with the highest resolution." It's not that clear-cut. And my personal experience is that people have more control over the direction of their project than they might appreciate.