As you just implied about math not having physical existence, math isn’t the experiment (such as I asked for), it’s the tool used to quantify the physical data that is gathered from experiment.
Using math isn’t the proof of the findings of experiment, nor are any “platonic forms”. You see a tree, it’s real. You see how it behaves under different real conditions in a repeatable way - everything’s physical, you can prove it and make your proof more comprehensible and predictive using math.
I’m asking you to devise an experiment to show that Platonic forms are as undoubtedly real as something like a tree.
As you show that you understand, you can’t - Platonic forms are “outside space time” - thus they not undoubtedly real: they can be reasonably doubted. You can be reasonably doubted.
The utility of math cannot be doubted, but math itself can be: just as you admit that “you can’t find the number one anywhere or the number 4”. Math is more of a description of a way of mentally compartmentalising reality. That isn’t a proof of it, it’s more of a proof that we can think in a certain way that we normally explain as “using math”. You can prove the reality that people also think in a certain way that can be similarly explained as “conceiving of Platonic forms”. You can do the same for people thinking in a certain way that can be explained as “believing in Santa”. Why should we doubt Santa any less than Platonic forms?
The idea of Santa and even belief in him has a real effect on the behaviour of real things/people. We accept that this doesn’t make Santa real.
The idea of math and even the belief in it has a real effect on the behaviour of real things/people. We accept that math is real.
What’s the difference?
The belief in Santa cannot be used to create real possibilities that were previously not possible. Math can (and consistently has).
What does the belief in Platonic forms do to create real possibilities that were not previously possible?
Are they gonna make “hyper-dimensional mirrors” or a “consensual reality”? No. If anything, math could - but back to my request: devise an experiment to cause such things to be real. Devise an experiment to show Platonic forms are real.
You can’t.
You can be reasonably doubted.
I am genuinely interested in where this IQ rumour about you came from. A person with a high IQ would have surmised that what I said was not sufficient to be interpreted as calling you retarded. Nothing you have ever said that I have read has been sufficient to show you have a high IQ. Speaking as someone with a legitimately proven high IQ, this warrants genuine my intrigue and not your disgust.