Thanks for your swift reply and kind words! Nice to have someone to share some thoughts with. Perhaps I’ll elaborate more on this topic. But I think you’re not pessimistic to think we will never find all the answers, you’re just realistic, we never will. There is a limit to what we can find out, observe and comprehend. And even scientists go down roads lately that are just… pseudoscience. The multiverse…. come on!

You said one thing that resonates, anything that can exist, does exist. So if time travel was possible, we would have time travelers in our midst, visiting us. If anti-gravity would exist, we would have found examples in nature and biology.

Quantum calculations are based on vectors and vector spaces. Vectors need a vector space. A vector space needs a reference point, a zero. That’s ‘imaginary’ to start with. When we would use some positive point in space (I know this is absurd because we’re moving with an enormous speed through ‘space’) like (1003,4568,3032) all calculations would be quite cumbersome and still we would find a vector has a direction which we would call ‘negative’. And here is the flaw in mathematics, they have chosen the same symbol for ‘minus’ as for ‘left’ or ‘down’ in a vector space, introducing all the confusion about negative values being squared. That’s why we need the hack i2 = −1. Only to get from a false positive number (a negative vector value squared) back to a negative value. There’s really nothing more to it if you think about it.

If the mathematical language could be rewritten and there would be something as x and x’, y and y’ and z and z’, with all positive values (instead of (4,-5,-6) we would write (4,5',6') where 5' squared = 25' or something like that), we could get rid of imaginary numbers.