Let me attempt to answer this.
In the future there will be two Bitcoins, Bitcoin Core and XT. This
will by necessity happen, because as TX rate increases the backlog
will become untenable and the majority will go with bigger blocks.
Apart from Core, which can't without serious egg on their faces, as
they have consistently said that block size cannot rise as it
increases mining centralisation and there have been no tests showing
why 8MB is a safe limit. (Indeed, BIP101's limit doubles every couple
of years, so that will be the worst proposal for them.)
It is also possible that people would rather prefer a lower risk, one
time increase to 8MB with no doubling. Mike's fork will have such a
head start by then that the alternatives might never catch on and gain
significant traction.
It is as Mike already said. Core's vision is led by Blockstream and
wants Bitcoin to become a low-volume settlement network, with
Lightning Network or similar atop of it. XT's vision is to scale with
usage growth, and to keep on-chain payments as competitive as possible
with alternative payment technologies.
On 24 August 2015 at 14:59, František Plaček