The internet began in the early seventies, was that when the boom started?
No....just when EVERYONE got access to it.
No, only a few academics/scientist got access to it in 74.
Popular use didn't start until PCs became more common in the early nineties. But popular use didn't start a boom. In fact, back then, it was wondered if anyone could ever make any money at all off the net. The boom was a stock market/dot com boom that began with Initial Public Offerings of internet companies, with netscape in 95, which caused runaway Internet IPOS all the way into 2000. Since most of the biggest IPOS never made a profit in the 90s, the boom could not have happened without lots of venture capital to throw around which wouldn't be there if it were locked up in debt.