> the data drifts It's in fact the data itself is the closest to reality, not the ML model... It's a conundrum in the flow of reality for me: Reality -> data

> the data drifts It's in fact the data itself is the closest to reality, not the ML model... It's a conundrum in the flow of reality for me: Reality -> data that reflects reality (hopefully as best it can) -> train model based on data (typically takes a non-trivial time scale!) -> make decision / do stuff based on algo with newest data If you ask me, even with all known technology we have, seems like it's impossible to simultaneously aquire realtime data and train a model to operate and or make decisions on exactly that data. It's a catch 22, there will always be a lag Even as humans with super big brains we can't hope to do this outside of extremely simple tasks like "throw and catch the ball"