What is the difference between ERC-20 and ERC-721?
Could you please elaborate on the fundamental distinctions between ERC-20 and ERC-721? I'm particularly interested in understanding their unique use cases and the technological disparities that underlie them. As a crypto enthusiast, I've come across these terms frequently but am still a bit hazy on their specific differences. ERC-20 tokens seem to be quite prevalent in the cryptosphere, while ERC-721 tokens appear to have a more specialized role. Could you clarify these points for me, and perhaps also provide some examples of projects that utilize these token standards? Thank you for your time and expertise in this matter.