the rub

Here is the rub: Microsoft in its financial reports identifies OpenAI as an equity-method investment.

That’s where the rub came for Sarmiento and other Dodgers fans.

There’s the rub: No one knows for sure what’s coming next.

For Warner management, that’s part of the rub.

"However -- and there is the rub -- the operating temperatures, i.e. the temperatures in which they can be used safely, are in the range up to 1,100 degrees Celsius maximum. This is too low to exploit the full potential for more efficiency in turbines or other high-temperature applications. The fact is that the efficiency in combustion processes increases with temperature."