Algorithm can be changed to avoid new asic development, when for example bitcoin algorithm would be changed to current asic proof, if someone crazy company would start to develop new asic suitable for new algorithm, it would take a while when they succed, after that, algorithm can be changed to avoid that nwe asic too, and thats about it, i would like to see which crazy company would invest in researching technology that would not be needed soon after it is developed. There would be plenty of miners for supporting transactions, you can be sure about that, there just need to be correct information about that for potential miners. I am not in a dream world, unless bitcoin developers are close to large companies that gain profits from asic development, that this all idea is not real. It should not be like that is now, everyone is supporting greedy companies, that is making money by producing miners for dummies, that will most probably get back their money.