Care to make a wager, iCEBREAKER? 1 BTC that the longest proof-of-work chain contains a block larger than 1 MB by this time next year (10-Jul-2016).
If you lose, I want real Bitcoin. If you win, expect to be paid in doublespent Gavincoins.

Did you just agree to the bet? I can't tell.
We'd both deposit 1 BTC to a multisig address (3rd key held by neutral party). If the chain forks, the winner would automatically have coins spendable on both sides.
You can't tell because you edited out the part of my post which answered your question:
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Does ^that^ help, or do you require pictorial aids like dear old befuddled Doctor Frappuccino?