What's wrong with my landing page?

Ok you can say nice things as well.... This is my first start-up venture. I'm 24 and from London. Our platform will be a calm place away from social media for political, intellectual, cultural leaders to have written in-depth correspondence with each other and the public, in public. https://collate.org

Keen to get feedback from the IH team on:

• Copy above the fold. Is it enticing?
• Main concerns with the general idea.
• What do the aesthetics of the site say about our brand? Friendly, serious? etc..

Honest thoughts welcome :)