Cantor fought hard to get infinity treated as a real thing, and not just a useful fiction. People (esp Kroneker) were dead set against it. I wrote a bit about

Cantor fought hard to get infinity treated as a real thing, and not just a useful fiction. People (esp Kroneker) were dead set against it. I wrote a bit about this here: https://superbowl.substack.com/p/church-of-reality-cantor-on-infinity https://superbowl.substack.com/p/church-of-reality-cantor-on...