In this case, you can't even imagine a slight possibility that it is "friendship collusion"? I can't be so sure like you guys. the 37(3700) and 68(6700)(raise larger than pot) is too great a coincidence.
...There is no collusion going on here. This is just a conversation going on in the middle of the hand. Antonio piped up in the middle of it and said '37' maybe for a number of reasons. Most likely because that's the number Laak bet and it's the current number in his head. Do you honestly link think he is giving Dwan/Tran some information by telling them how much Laak bet? They're pro-players. They've seen and calculated bets before, way bigger than 3,700 and by more than one opponent, so this is nothing different.
And I guess you're telling me Dwan is 'colluding' with Esfandiari by telling him to raise 6,800 or 'larger than the pot.' Yeah, that's really aggressive there. 2 aggressive NLHE players are colluding to raise 3,100 than the initial raise. ...smart.
Start with the basics, like David Peat on High Stakes Poker saying "Quack Quack" for a $2,200 bet.
The 2's look like a duck.
They do play at that level.
...Uh, Paul Magriel (I believe) started this 'quack, quack' thing since most, if not all, of his bets start with the numerical value of 22. Known as 'double ducks' in backgammon or ducks in poker.