The title question has run through my mind a million times, in the end, the repeated answer is Yes!
Here are why:
1. As pioneer: Bitcoin is a new innovation than any other, the very first blockchain structure wired to function nicely in payment and finance. Such an authentic innovation doesn't die, but stays forever as long as the world remains.
2. Hacking: Bitcoin cannot be hacked.
3. Fairness: The blockchain mechanism ensures fairness among parties, no discouragement.
4. Decentralization: You can own your Bitcoin and have the true possession.
5. Value: Bitcoin is an asset. It has so much value to the point that you can buy it and forget for years to meet huge success goal. This hedges against inflation and increase financial freedom.
6. Intention: Unlike many projects, the intention of the creator was pure, selfless, neutral and genuine. Such system often attracts adopters naturally and give everyone the freedom they deserve.
Although Bitcoin pioneering PoW blockchain & decentralized ledger provide it with lasting strength, however no one could claim it is invulnerable. There is no doubt the whole system is immune to hacking at the protocol level, also a heap of computing power is required if any organisation attempts to rewrite history, notwithstanding that user wallet & exchanges could still be compromised. Another concerning matter is mining centralization, with a few pools having authority over nearly 90% of the hashrate that shoot up the risk of 51% attack. So yes bitcoin system could sustain oneself, but the future not only depend on early innovation, but also greater mining decentralization, continuous regime & stable custody.