designers believing they can by default build and scale businesses is the new version of “design thinking” – an unfounded belief you’re better than others 

just because you can make a great product or experience by designer metrics absolutely doesn’t mean the market will react the way you want 

had to learn the hard way

It's crucial to remember that design excellence doesn't guarantee market success. Understanding user needs and market dynamics is just as important as creating a great product. Learning from experience is key to growth in any business.