Scientists have created a fluid with negative mass – but what does it tell us?

For an object with negative mass, Isaac Newton’s second law of motion, in which a force is equal to the mass of an object multiplied by its acceleration (F=ma) would be experienced in reverse.

 

"No fundamental particles with negative mass have ever been discovered, meaning that there have never been any experimental insights into how they might behave – if, indeed, they exist. The latest study provides a new platform to study this hypothetical form of matter, by showing that under certain precise conditions, normal particles can be made to behave as though they had negative mass."

I had a hypothetical dog once. It buried a hypothetical bone. Later, it dug up the bone and it changed the dynamic of my universe... Especially when a rabid rabbit came into the yard and started nibbling on the hypothetical bone an hour later.

My dog then ate the rabbit which became hypothetical after it ate the hypothetical rabbit that had nibbled on the hypothetical bone. Earlier. Theoretically.

 

The Bose condensate was once hypothetical too, until it wasn't.

 

I wonder what the practical application would be. It should have some, someone will come up with it.