I read the differentiations between facts and opinions, and I either have doubts about them (which is unlikely), or I misunderstand them.

Is it a matter of understanding language definitions or philosophy?

My question is:

I read here that facts can be proven while opinions can't, but for example if I say: "It is hot!":

It can be proven whether I'm really hot or I'm lying by observing sweat. Then all opinions can be proven; So, there are no opinions.

It is also said that facts are universal while opinions are relative, but for example if I say "Earth is an irregularly shaped ellipsoid.":

Some people will say it is true, while some will say it is false and instead say that earth is flat. Then all facts can't be universal; So, there are no facts.

What is wrong with my claims? Do you use other definitions?

  • 8
    One can feel hot without sweating. And just saying something that's opposed to a fact, doesn't remove the fact. Claiming 1+0=2 doesn't collapse the entire mathematics. It's just a wrong claim. What you've presented isn't any proof that opinions are facts or that facts are opinions. Do expect this is the first thing you'd get feedback on, on whichever site you ask this.
    – VLAZ
    Jul 25, 2022 at 5:54
  • 2
    Why wasting our time by asking something after you've already acted by yourself? You could ask before acting, wait for reply, and act upon it, but it feels like you already know the answer anyway. Jul 25, 2022 at 7:01

1 Answer 1


As you seem to have asked this question on Philosophy.SE already and it's

  1. Been answered by multiple people
  2. Been through the first answers and close vote queue, and is currently open
  3. Currently has a positive score

We can conclude it's fairly likely to be on-topic for that site.

If, however you're asking about whether something is true that you've read in a notable publication, such as a newspaper then Skeptics might be the right place.

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