What do you mean it can disappear and nobody will even notice? I can think of a few things but I’d rather not assume. Can you spell it out so I can better reply?
As for backups, the Bitcoin ledger is likely the most durable dataset that has ever existed. Backups are made daily at every layer across the world and there is no central point of failure in the network.
Shutting down the Bitcoin network would take a world war, and even then the network would survive through backups and the will of network participants to bring it back.
Which means that it’s just a gamble of some insiders.
Speculation is by definition gambling. Investing is also speculation. You have a thesis, and you make returns if that plays out. You lose capital when you are wrong.
Also, I'm not sure what you mean by "insiders" - most of the world can purchase Bitcoin, the software is OSS, the network inspectable, and the evolving thesis and narrative is fully available online.
Bitcoin is the people's money.
>Abstract. A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution.