Last week I had the brilliant idea to uses drones to wash windows in high rise buildings. The idea came to me because we live in a high rise building and washing the outside windows is complicated and dangerous. Men on platforms with ropes and pulleys maneuver to get to the windows. At the same time the news is full of “drones at war” stories. I made the connection and got excited until I searched Google and found out that there are lots of companies offering drone window washing and that you can buy a complete system for under $50,000 including training.
The best word I found for the same idea occurring to multiple people at the same time is synchronicity.