Was social media a good invention? One way to quantify the value of a product is to find out how many of the people who use it wish it had never been invented. Feelings of regret or resentment are common with addictive products (cigarettes, for example) and addictive activities like gambling, even if most users say they enjoy them.
For nonaddictive products — hairbrushes, say, or bicycles, walkie-talkies or ketchup — it’s rare to find people who use the product every day yet wish it could be banished from the world. For most products, those who don’t like the product can simply … not use it.