Hi everyone, I'm sorry if this seems like a noob question. I'm currently prototyping a social network app that I think could actually be the next big thing (I get it, this is gonna sound narcissistic and such a novice thing to say but hear me out) . If I build out the complete wireframes and UI design for the app but I can't code myself, and probably don't have money to hire coders, will it be possible for an investor to just invest based on my idea pitch and the designs that I have made? I can learn and handle the marketing and business end.

I know that investors don't usually invest in social networks unless they have users or atleast an MVP as the bare minimum but is it possible to impress an investor if I make a landing page with a video demo of the app and people sign up for it (potential future users) if I get a lot of those, will it be more open for an investment?