When I bring up that Ethereum has 100% uptime, people will often tout that it's only a matter of time before the network experiences some critical issue and goes offline.
Well, the Ethereum ecosystem already planned for that long ago by pursuing things like real client diversity so that the chance of the network going offline is as close to 0% as possible.
Of course, we can never say with 100% certainty that there won't be some catastrophic bug that results in the network going offline one day, but Ethereum has been purpose-built to be as anti-fragile as possible.
Ethereum will be the worlds most reliable settlement layer - always online, always available, censorship-resistant af. No other network is even trying to compete in this arena - Ethereum stands alone as grand champion.
Of course, Ethereum is also powered and secured by the greatest programmable store of value asset to ever exist (the ticker is ETH).