If it is true that...

Making technology easy to use can significantly increase sales

Then it must be true that...

A startup makes money by offering people better technology than they currently have

If it is true that...

Making technology easy to use can significantly increase sales

and

The best way to figure out what customers want is to watch them and talk to them about what they need

Then it must be true that...

The founders of a startup need to include at least one person who can focus on what customers want