If hypothetically Bitcoin grows and more people come into the fold so do more mainstream theories on economics which would favor a more inflationary currency. I would side with not changing the supply schedule at all of course.
That is what happened with gold as money. The majority were unhappy with gold's constraints and wanted easier monetary policy. That gave us the FED and fractional gold. Fractional money is what created the 20s boom which everyone loved, then by the time the hangover started in the 30s the people again demanded the easy way out and demanded default (which is what FDR did), and all the while most people praised FDR for saving them from the "hoarders".
An advantage of Bitcoin is it is not a democratic vote. Entities with real stacks in the system have to agree too. As frustrated as we are by the Chinese miner hesitation today, this aspect also puts a brake on the majority described above from voting or forcing a supply change.
Another aspect that protects Bitcoin's supply is who the rewards go to. Today monetary inflation provides free money to governments and banks, but in Bitcoin an increase in supply goes to miners, not governments. This is a huge difference and it creates a stalemate. If the people want to increase the supply to provide them free money, well that money won't go to them, it would go to the miners instead. Since that benefits no one but the miners, why would anyone want that?
Unless governments figure out how to increase the supply in a manner that causes money to go directly to government coffers, then they won't be motivated to force a supply increase. I suppose governments could try taxation of coinbase rewards, but this would be hard to force since mining is cross boarders and we have things like tor. If governments tried to force increased coinbase rewards and tax them 100%, well miners who ignored these taxes and mined through hidden proxies would grow since they would be massively more profitable...
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The miners speak, and they choose to increase the blocksize.
It is the miners in charge of the mining power not the pool operators, what a dramatic switch in hashing power, that is quite something.
The vote on Slush was something around 99.5% for Classic and 0.5% for core. It was pretty one sided. This bodes well.
It also makes me surprised that one of the smaller pools is not activating Classic quickly and advertising the heck out of that. It would be a great way to grow share if the slush vote was even reasonably close.