I get this a lot when talking to semi technical people about a project I'm working on. Their side of the conversation normally goes something like "Well how did

I get this a lot when talking to semi technical people about a project I'm working on. Their side of the conversation normally goes something like "Well how did you think of X? But where did Y come from?", to which I reply, I wanted X, X needed Y to work, so I created Y". The question is always asked, and the answers are always similar and I always feel awkward explaining things that are second nature. It's akin to someone asking - so why did you exhale?