The basic weirdness is that we can't experience objective reality as due to the nature of our minds we can only possibly subjectively experience it interpreted by our senses and sense-making. Although even the ancients could prove the curvature of the Earth by measuring shadows at the same time in places separated by enough distance, a person born blind would have to trust the sighted that shadows exist for example. Since we are aware of some phenomena we can't observe without the use of specialized tools and some branches of science diverge significantly from what's intuitive to us, It's very likely that there are some elements of objective reality (if it exists) which we couldn't possibly observe or comprehend. I know all that sounds like star-gazing bs which is completely irrelevant, and in almost all circumstances it is, but approaching facts as most likely to be true given the evidence rather than certainly true can reveal ways of thinking which could be more useful than our current paradigms. Although unlikely in my opinion, it's possible that in a few centuries the circle may be considered similarly to how the four elements are considered today. I personally can't imagine how that could be possible, but I'm just some random person in 2023. I see the circle and describe it as a circle because that's what I know, and what I know is loaded with context and limitations.