Should we add a demo video to our pre-launch page?

Even if you don't do a demo, it is crucial to have a clearer value prop. I went to the page and knew absolutely nothing about the product or its benefits to me. The high concept "freedom of thought, motion, and expression" tag lines are only effective for products who are already ubiquitous because they have a less of a need to explain their purpose

As @orliesaurus said, screenshots would be good too.

Yes, I think it needs more explanation.

Yes - is this going to be a competitor to Miro ideally?