Let me know when the next best internet comes along. There's zero incentive to switch to something new when we've spent the last 30 years building the internet infrastructure. Do you think miners will just throw aways billions in hardware just to try something new?
Discussion
In your analogy, " the internet" would be digital currencies while Bitcoin itself would be something like SSL or http. Absolutely Bitcoin can become antiquated. You'd be wise to keep your antenna up for the next big thing, or your money could go to zero.
Keep an eye out for the next globally connected network. Your computer might turn into a brick.
Quick reminder that the “current established bitcoin” (core v30 majority) allows arbitrary non-monetary data up to 100kb to be appended into the chain. People are debating this, and a fork may arise as an attempt to change the system. So yes, you better keep an eye out, because if your only motto is “bitcoin will always rule” you will end up inside an outdated system.
We are using nostr, which serves as a proof that there are indeed incentives to change to something new from an already existing infrastructure. Bitcoin is the first of its kind and has been proven resilient, but in the end anything can happen and every system has to adapt itself, no matter how established.