yes which is why "yellow" and "banana" are both non primal.

Great :) tell me why you disagree

you haven't given me evidence that conceiving of things such as "line" is impossible without experience. By that description, blind people should never be able to do geometry because they won't be able to conceive of lines having never seen a line. Also what about numbers. I find it hard to believe that one cannot conceive of numbers without sensory experience

By that logic you’re saying blind people are incapable of experiencing. I have a feeling this is a bit beyond you at the moment so I’ll just leave you alone.

Someone mention tabla rosa previously, that is probably a good place to start looking. Also, the history of behaviorism and the whole nature or nurture question may help outline the conditions for experience and knowledge better.

As an attempt to open the problem up consider what you knew about anything before you existed. That is basically what a priori means. Prior to experience there is no ‘knowledge’. Much like the concept of a ‘hat’ being nonexistent in the absence of ‘heads’.

Kant famously said, “Thoughts without content are empty, intuitions without concepts are blind.”

Note: ‘Intuitions’ has a specific meaning beyond the colloquial use today.

By that logic you’re saying blind people are incapable of experiencing. — I like sushi

No they're incapable of experiencing the experience that showed most of us what a "line" means. Aka seeing a line drawn and someone pointing to it and calling it "line." Which SHOULD mean they will never be able to do geometry because they cannot see lines or points by your argument

Tell me, what experience is needed to understand what a "line" is?

I’ve given you pointers. Go look. Start with Kant’s use of ‘intuitions’.

Nothing more to add, but I’m sure others here would be more willing to engage with you in depth.

Why do you call the categories 'primal' and 'non-primal'?

'Abstract' and 'real' would make better sense as there is a clear divide between the real world and the abstract worlds.

makes sense. Idk why I chose those names