Yepp... Me. I just don't have the time and the necessary problems to solve in order to keep up to date. And for most of my daily challenges a good old linear regression or random forest is all that's needed. And if I want to get fancy, I use xgboost.

Stuff like diffusors, transformers... fascinates me. Do I understand the principle ideas behind them? Kind of, I think... Would I be able to replicate the results? Hell no! Let alone use the principles to solve my own problems (that I don't even have)...

I miss doing AI science. But at some point you've got to let go and let fresher minds do the pushing.