It's a very hot topic.

The tissues of the feet lose some of their elasticity, and the fat pad on the foot's bottom becomes thinner as people age.

Robots... I think that is a hot topic.

Interestingly, human irrationality is a hot topic in economics at the moment. Behavioural economics it's called, on the cusp of economics and psychology.

The amount of advice, and portfolio monitoring and portfolio structuring is going to be a very hot topic over the next six months, ... and it's going to be very difficult to compete with a beat-up car when the guy next door has a nice shiny one.

When the refs have a hot topic and are on the lookout, a marginal tackle can wrongly be whistled as a dangerous one. It shouldn't be a paranoia.