Markism involves the highest optimism and opportunism - it's now been coined in the DONDictionary, thanks to yours truly

It's simply another method of playing the game really...targetism, aiming for a set amount then taking it if the board isn't safe enough for your confidence to play on...Wakeyism, as long as big money is in the game, chase it...and Markism, regardless of what you had the previous day, there's nothing to say you can't have a big amount in your box and should go for it.
Now I've typed that, Wakeyism and Markism really do sound similar...only Markism won't always involve recklessly dealing, should the offer be right. Even Mark has said on good offers, words to the effect of "just gotta believe the £xx/xk is on the table and go for it, or cut your losses and face the possible regret"