Ask HN: What are barriers of entry for tech startup competition?

I've been working on a pitch to angel and we got a common questions list for investors where one of them asked "what are the barriers of entry for your competition?".

I'm working on a tech startup and this question really threw me off-guard. The prevalence and accessibility of tech has made development and building so democratized that I'm not exactly sure if any barriers of entry exist.

HN, what barriers of entry are there for tech startups?