The US IT industry (as a lay person) is the only one where a startup can feasibly grow quickly enough to justify the investment. Construction in the US is mini

The US IT industry (as a lay person) is the only one where a startup can feasibly grow quickly enough to justify the investment. Construction in the US is minimal. The initial costs of any industry with production, manufacturing are immense. Healthcare is one area where there is space for clear improvement, but being a rigid to change as it is, healthcare startups really struggle to penetrate the industry. You may invest in the service / food industry, but it doesn't seem to be as hyper-scaling friendly as it used to be. I do not foresee any trend since Starbucks that has been able to take a country by storm. You can invest in smaller restaurants, but that is more of a small business investment than anything resembling stock, so good luck making it a liquid asset, even if successful. Also, a lot of investments are mislabeled (often purposely) as tech startups but are actually some thing else. Uber, Lyft, Airbnb, Coursera, Udacity, Instacart, Juul, WeWork, and the like are to me, products from a different industry all the together. The tech aspect of their business does not influence their success as much as it may seem.