Tech will always be the star of the investment show. No other industry can or will be able to deliver so cheap and fast.
Agreed. WeWork being the prime example of something that was evaluated as "tech" despite being anything but.
Plus the "deliver cheap and fast" was not just because tech was so useful and must have, but mostly because of a number of factors, like people having money lying around to put into stocks, interest rates being low, QE, and so on.
With a decline in income comes a decline in advertising, (taking "eyeball" based companies), and a decline in BS subscription spending (taking down many "real business model selling SaaS" companies, resulting in a downward spiral...