Bro, theta is not edge. The market is aware that time passes.
So if you know your instrument , I only know one instrument , I am more aware of supports restance , trends on the one instrument , therfore market and option formula do not have my on which edge on which options to sell and which options to avoid.
The edge is derived from the instrument edge , the premium decay and specific strike prices , the timing of the trades and my support and resistance anylysis for the instrument.
There is no edge in randomly trades based on the option formula.