Let's not get sidetracked by sidechains and IBLT.

The first was demolished even by cypherdoc in his econ-for-trolls thread, whence half of you came. They wil be decimated by speculators within hours, as with gavincoin.

The second is a blatant move towards conformity and centralisation.
"With today's p2p protocol ..." https://gist.github.com/gavinandresen/e20c3b5a1d4b97f79ac2 starts USGavin, preparing our arseholes for "tomorrow's p2usg protocol".

The old bitcoin foundation added and proposed a ton of other such ways to eventually con you out of your money too, such as multisig, timelock.

The new one has halted all such complications and is producing a purer form of the discovery that is bitcoin. Everything that makes sense stays, everything else...

Once the crust is removed, block size and all the other elements of bitcoin can be tested without interference from or reference to Gavin, Blockstream, anyone.