[usgroup]

In the case of a general product, spending some FB bucks and creating a landing page doesn’t necessarily validate an idea. Perhaps more importantly it doesn’t invalidate an idea if it doesn’t work.

Consider focusing on just physical products which are just sold on Amazon.

[Shynobi]

So we've realised that our solution doesn't really validate the idea, it's just slightly better than using emails. We're thinking of how to better solve it now.