The OP's question assumes that some topics are inherently more difficult to learn than others which isn't necessarily so. But in terms of the way knowledge is s

The OP's question assumes that some topics are inherently more difficult to learn than others which isn't necessarily so. But in terms of the way knowledge is structured programming could be regarded as a practical application of computer science, which in turn may be regarded as the science of what can and can't be mathematically proved. When you check a mathematical proof a computation is being performed involving your brain and a piece of paper. And nowadays some proofs incorporate computer programs too.