[user5994461]

The largest financial systems are running on COBOL/mainframes.

Planes are running on embedded microcontrollers still written in C or Ada. (They can't even get the approval to write C++).

Docker is not 1% ready for critical use. The day these things will use Docker, planes will fall and we'll have the next financial crisis.

As someone who worked both in finance and aerospace, handling systems that traded billions of dollars and planes that were carrying hundreds of passengers. This is my testimony on the year we tried to use Docker in production: http://thehftguy.com/2016/11/01/docker-in-production-an-hist...