Nvidia's CEO gave a super honest account of what it's like to start your own business. It should be required reading for anyone considering it.

• Starting a company is difficult, and Jensen Huang says he wouldn't do it again if he had to go back.
• The Nvidia CEO said on the "Acquired" podcast it was "a million times harder than I expected."
• "To this day, I trick my brain into thinking, 'How hard can it be?' Because you have to," he said.

Jensen Huang built Nvidia into a trillion-dollar company, but if he had to do it over, he wouldn't start a company again.