Maybe possible but I think highly improbable. Bitcoin had a singular opportunity to emerge in a world with no competition. Any new rival now needs to compete with an entrenched, well established, widely adopted opponent. It would take either a significant improvement , or some top-down coercive dictate (i.e. CBDC) to get significant numbers of users to switch to a new alternative. Evidence of this is despite an abundance of shitcoins, all claiming to be superior in some way, after 15 years nothing has come close to dethroning the king.

Similarly, despite the possibility of a new protocol emerging to replace TCP/IP, I think this is also highly improbable, and am willing to take the risk and go all in on a variety of devices (computers, routers, phones) and services (Internet, VoIP) that rely on it. I'm taking a chance since these may all become instantly obsolete if some superior protocol comes out of nowhere.

How about you? Are there any technologies you use regularly, that could possibly be replaced but you feel this is improbable enough to devote your scarce economic energy towards anyway?