Changing the block timing and block reward structure radically breaks the social contract that Satoshi made when he created Bitcoin. None of the miners will agree to such radical changes and that will prevent them ever happening.
It could be done in such a way to maintain the social contract my adjusting the block reward to 1 minute target and 2.5 BTC reward.
This doesn't change the fact that this solution has been discussed many times before and isn't wise. Any alts with 1 minute less confirmation times have extremely high orphan rates and more forked branches. While there isn't an exact ideal number it certainly isn't 1 minute but somewhere between 2.5 to 20 minutes. Dropping it down to 2.5 minutes will increase the TPS from 3-7 to 12-28tps which isn't enough.
Even if we were ready for alternative solutions like the lightning network we would still need to raise the block limit regardless to handle that implementation.
A better idea is for us to form a consensus around some of Gavin's original calculations and go with a number like 8 MB block limit as it uses his own math, it won't be as drastic of an increase as Hearn is trying to push through with XT, and with 2 added qualifications:
1) We create a plan to address some of the concerns raised by those who oppose the increase, like having qualifiers such as creating a plan to increase the node count in a sustainable way and only roll out the code when certain goals are met, having a clear plan to test and roll out changes for the lightning network(fixing transaction malleability and starting to test it on a sidechain) and other proposals and meet some goals, and possibly finishing other privacy focused proposals like Todd's BIP 63.
2) We create perform more formal testing and simulation.
Hopefully, everyone can humble themselves and we can all work together on a solution which satisfies the community instead of being stubborn.
