"The best way to make Bitcoin fail is to believe that its success is guaranteed [...] The big compromise in a strongly decentralized system is that it's all of our jobs to look out for it."
This is also a good way of saying Bitcoin needs to be further developed to meet the demand of the current situation and more importantly be one step ahead of the competitors. Looking out for the flaws and implementing fixes for them. Planning ahead to outsmart competitors and outperform the existing system in terms of fees and transaction confirmation time. Since Bitcoin was created as a currency, it must compete with the existing currency in terms of security, accessibility, reliability, and speed while not deviating from its original purpose of being decentralized. In short, Bitcoin technology development must also not slack.