You might want to elaborate a bit on the differentiating factor of your marketplace compared to the existing ones as well as why your team is qualified to build

You might want to elaborate a bit on the differentiating factor of your marketplace compared to the existing ones as well as why your team is qualified to build it. I don’t think any number of pre sign ups can make up for not knowing anything about the product to an investor. Starting to build a prototype/poc would also go a long way to showing commitment.