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I like this list a lot. I'm actually going to bookmark it.
From that article:
Eco reduces the qualities of what he calls “Ur-Fascism, or Eternal Fascism” down to 14 “typical” features.
Which of those 14 typical features you see in Milei's movement to call it fascism? Because I see none, honestly.
Edit: Grammar errors.
You're looking for counter-arguments for Solipsism.
Wikipedia's definition:
Further reading: Solipsism and the Problem of Other Minds
Thread with some counter-arguments: https://philosophy.stackexchange.com/questions/89321/what-are-the-best-arguments-against-solipsism
The one I personally chose for myself is the pragmatic one: Believing reality is a fantasy doesn't actually changes your experience of it.
Edit: Broken links.