Imagine that you went to Mars, where you discovered that the beings who live there don’t have the portable music player. They’re still using boom boxes.
You realize this is a huge business opportunity and start selling portable MP3 players (except on Mars they’re called Qxyzrhjjjjukltks) and compatible headphones. To connect the MP3 player to the headphones, you invent a neat kind of metal jack that looks like this:
Picture of a stereo headphone jackBecause you control the player and the headphone, you can ensure that your player works with your headphones. This is a ONE TO ONE market. One player, one headphone.
| Author | Joel Spolsky |
| Work | Martian Headsets |