Yeah this rule of thumb was for low fidelity things like hand radio buttons. > We may be slow to react to sudden events, but we are very good at noticing the l

Yeah this rule of thumb was for low fidelity things like hand radio buttons. > We may be slow to react to sudden events, but we are very good at noticing the lag for predictive events (keyboard typing, piano playing, ...). It does make sense in my lay person’s understanding that the chain of eye -> brain -> hand for reactive events would be slower than brain —> eye + hand for proactive events.