Should top Marginal income tax rate exceed 50%

[Thank you for being a friend...]

I always wondered what would happen if we ended taxation completely, and instead have the government create new industries that would generate profits, which would then be used to pay for services.  For example if the government nurtured a new kind of technology.  The U.S. government has been in business before, its spending has spurred the creation of new inventions.

We could create a national university and make a deal with students: we'll pay for your degree in chemistry, if you work in our lab and whatever you create becomes property of the United States, allowing the government the exclusive right to sell it.