[lulmerchant]

The theories are incompatible at all energy levels, it's simply that those are two examples where we can't use them to accurately predict outcomes. Another not-extreme-at-all example where quantum physics completely breaks down is empty space. However, this discussion is deliberately missing the point, which is that it's not making predictions in everyday scenarios where physics fails. It's in describing the basic nature of our universe, which are two completely different things all together.

You're right that there are examples of scientists who highlight these gaps in our knowledge, there are more who simply pay some lip service to them, and then there's a much larger group of people, like dbasedweeb, who irrationally suppress all criticisms of scientific theories as if they were literally religious beliefs.

[dbasedweeb]

I want you to engage in a thought experiment. I don’t code, and couldn’t program my way out of a wet paper bag. I assume that you can do much better than that, right? If I try to bullshit you about something you know a great deal about, from my position of ignorance, how long would it take for you to realize that I just knew little bits and pieces, but not the big picture? A sentence? Two?

And yet you seem to think that when it comes to physics, this same rule won’t apply. If you really care about the subjects you’re talking around, take some intro courses, really learn about it, or accept that you can only bullshit people who know less about the subject than you.

Phrases like, “the basic nature of our universe” sound good if you don’t know the first thing about the topic at hand, and probably impress people with no education or experience on said topic. To others, they’re huge giveaways that you don’t know what you’re talking about. Other red alerts are, “What is space?” “Empty space” and broad, substance-free critiques.

If you care about the subject and not just projecting a particular image of yourself, then bother to actually learn about them beyond the level of pop science. Critiquing something you demonstrably don’t have a deep knowledge of is a pointless exercise unless you’re just trying to impress people who know even less about it than you.

Here are some resources.

Intro To SR: https://ocw.mit.edu/courses/physics/8-20-introduction-to-spe...

Intro to GR: http://www.staff.science.uu.nl/~hooft101/lectures/genrel_201...

Further reading on GR: Gravitation by Misner, Thorne, Wheeler.

Intro to QED: http://sophia.dtp.fmph.uniba.sk/~peterp/QED_A.pdf

http://hepwww.rl.ac.uk/hepsummerschool/Evans%2008%20Intro%20...

https://www-thphys.physics.ox.ac.uk/people/FrancescoHautmann...

Intro to QFT: QFT Demystified is a great starting point...

Quantum Field Theory by Claude Itzykson and Jean-Bernard Zuber

Anything by Zee, especially “For The Gifted Amateur”