By Ryan Avent
The opinions expressed are his own. 

The late 1990s was a wild time in Silicon Valley. The NASDAQ was soaring, and seemingly anyone could start a company, stick a .com at the end of its name, put together an IPO and retire a millionaire. The great boom ultimately took on a speculative character that led to wasted investments and the collapse of many poorly-grounded operations. But it was rooted in a surge of not-unrealistic optimism about the potential of the internet to change the world of business.