[bitcoin-dev] BIP 102 - kick the can down the road to 2MB

Luke Dashjr luke at dashjr.org
Fri Jul 17 20:29:16 UTC 2015

On Friday, July 17, 2015 3:55:19 PM Jeff Garzik via bitcoin-dev wrote:
> BIP PR: https://github.com/bitcoin/bips/pull/173

I'm concerned that miners are prematurely bumping their soft limit to 1 MB 
lately. The only reason block size limit lifting is remotely reasonable is if 
we can trust miners to at the very least keep their soft limits set at a 
manageable size, but this assumption appears to already be failing in 

We are unlikely to approach 1 MB of actual volume by November, so I would 
prefer to see the activation date on this moved later - maybe November 2016, 
if not 2017. It would also be an improvement to try to follow reasonably-
expected bandwidth increases, so 15% (1.15 MB) rather than doubling. Doubling 
in only a few months seems to be far from a "conservative" increase.

If we can get some kind of commitment from miners not to move their soft 
limits beyond 1 MB until some future-agreed-on point, maybe the BIP is 
acceptable as-is.

On Friday, July 17, 2015 4:12:05 PM Tier Nolan via bitcoin-dev wrote:
> It establishes a precedent for hard forks not to require a vote though.

Hardforks are not something where voting makes sense. They need consensus 
among /nodes/, not majority among /miners/. No hardfork has ever had such a 


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