Support Board

Wyckoff uses a priori thinking (a form of deduction) where everyone else uses some mechanistic rule. Since trading is action and commitment at all times then in order to trade effectively, hit what you are aiming at, then most traders commit to a pre-plan, which is mechanistic. Pre-plans can be tested empirically/historically while a priori judgements must be validated with reason and logic. History is irrelevant to a priori thinking but you use it to identify composite man's nature. Once the nature is known or understood trades are possible. I use tested preplans in order to anticipate the cost of a trade.