It could be understood as laser-like (i.e. parallel, collimated, non-diverging etc.) focus (i.e. mental focus, attention etc.). In this case the expression is c

It could be understood as laser-like (i.e. parallel, collimated, non-diverging etc.) focus (i.e. mental focus, attention etc.). In this case the expression is correct: it just means "non-diverging attention" and doesn't say anything untrue about lasers. I'm with you on exponential though.