You've got to do both or find a co-founder that rounds off your startup team, in this case I guess it would be someone on the sales/marketing/commercial side.

You've got to do both or find a co-founder that rounds off your startup team, in this case I guess it would be someone on the sales/marketing/commercial side. If you do go down the route of learning and upskilling in marketing. You'll probably find a solid startup idea along the way.