Back in 1981, Internet access cost $5 an hour and it took two hours to download the stories from the San Francisco Chronicle. Thankfully, a local TV station documented early efforts by the geeks to wire up the newspaper for other geeks. And thankfully somebody posted it.
■Class discussion: The idea looked far-fetched more than 25 years ago, didn't it? What ideas look far-fetched today -- which ones do you think will blossom like this one did?