I don't understand where the author got the idea that git was production ready in 10 days... Let's look at git history:
- Official development started on 03.04.2005.
- Git could self host on 07.04.2005.
- Git achieved Torvald's performance goals on 29.04.2005.
- On 16.06.2005 git was used to release the Linux kernel for the first time. That can be considered the first beta release, which achieved its goals, but wasn't production ready yet.
- Production ready v1.0 was released on 21.12.2005. That's waaaaaaaay longer than 10 days.
No good software is released in 10 days.
Bunker fuel is an umbrella term for any fuel used in ships, including diesel. The term describes how the fuel is stored on board, not what it is made of.