Cartoon about Hell – no mobile phone signal in Hell.
The fact that there is no cell phone signal in Hell is one of the reasons why Hell is Hell.
Part of the humour of this joke is that people are so reliant on cell phones or mobile phones that the idea of not being able to get a signal is truly terrifying and hellish.
It’s a cartoon about people’s dependency on and addiction to modern technology, without which they feel alienated and cast adrift.
The phone signal is fading in the same way that it does when one goes down an escalator into the underground or subway.