N0 (blackjack)
The number of hands (sometimes expressed in hours of playing
time) theoretically required to be played with a certain set
of rules and strategy (count, spread etc.) before the player
reaches his goal to be ahead by at least one standard deviation.
It has been supported as a main measure of every situation's
(rules & strategy) assessment mostly by Brett Harris. It
is expressed as N0 = Var / EV^2.
