Yes, and I am saying no-one has reactions that fast. Professionals hit the ball 70-80mph...up the chain someone said that keepers should just wait and see where

Yes, and I am saying no-one has reactions that fast. Professionals hit the ball 70-80mph...up the chain someone said that keepers should just wait and see where it is going: this isn't humanly possible, there isn't enough time. What they do is: statistical analysis of every penalty taker to see what preference they have (what corner, what they do home/away, what they do when they are facing a goal at a certain end, etc.) and most professional goalkeepers are pretty much experts in watching how players run up to the ball, how the taker's eyes move, how they position their body, how they position their non-striking leg (and strikers counter this: you will notice that most professional takers will look at the ball when they put it down, turn away from the keeper when they walk back, usually keep looking at the ball or directly at the keeper before they start running, and not look away from the ball when running up...there are reasons for this). And clubs will analyse videos of taker tendencies, and keeper tendencies.