The use of computers in mathematics has been somewhat controversial from the very start.
There are of course all the computer-assisted proofs (see 4 color theorem), as well as the partially-assisted ones (see Viazovska et al on packing problems in dimensions 8, 24). But even finding a solution numerically, then rigorously verifying its properties can leave a lingering sense of incompleteness, of a gap in understanding. I like this one quote by (allegedly) Wigner that illustrates it well:
"It is nice to know that the computer understands the problem, but I would like to understand the problem, too."
To bluntly put it in a nutshell, and state the obvious:
If you don’t understand the problem you can’t be sure that the computer does.
Reminds me of a quote from Tsoding
> “Programming is understanding. If you don't understand what you are doing, you are not programming. You are generating text.”
Perhaps a proof without understanding is just generating numbers.
Reminded me of this quote: the problem with machine learning is that it's the machine that does the learning