At the turn of the 20th century, the world was changing rapidly, and many believed the next hundred years would bring unimaginable progress. Their predictions about the year 2000 often reflected both wild hope and cautious fear.
These are 12 inventions that once captured headlines and imaginations but quickly disappeared after failing to live up to their hype.
Before high-speed internet was common, downloading anything larger than a few megabytes meant committing to an overnight wait. It was a test of patience and faith in both your connection and your computer.
Some apps were so big they felt like they would never go away, but time proved otherwise.
Here's a look back at 12 tech devices that had sleek designs and futuristic promises but fell short when it came to actual performance.
Here's a list of tech accessories that were more about fashion statements than actual practicality.