What is the difference between Cardano and SEI?

Could you please elaborate on the fundamental distinctions between Cardano and SEI? I'm particularly interested in understanding the technological disparities, as well as their respective approaches to scaling, privacy, and interoperability. Additionally, how do these differences impact their overall utility and potential in the cryptocurrency and finance landscape? It would be helpful if you could also provide insights into their respective ecosystems, including the types of projects and applications they support. Thank you for your assistance in clarifying these points.