This has names too btw: https://en.wikipedia.org/wiki/False_equivalence https://en.wikipedia.org/wiki/Reductio_ad_absurdum

There's a first time for everything, and an end to most things. The roman empire lasted hundreds of years, and then it ended. Many empires did. The sun will end too, at some point. Ice ages last for thousands of years, then they end. And there are countless other examples.

"X has lasted a long time so it will last more" is so obviously wrong. Think about it for more than 3 seconds.

Or was it sarcasm? I can't tell anymore.