You are overthinking it. This is just a premise to setup the joke that an engineer deals with approximation while the other two give up because they’ll never reach 0.
It could be a bowl of ice cream for all that matters, but people like corny jokes, so that’s it.
Because a sexual relationship requires 2 people to touch, so it is a relatable setup.
Removed by mod
You are overthinking it. This is just a premise to setup the joke that an engineer deals with approximation while the other two give up because they’ll never reach 0.
It could be a bowl of ice cream for all that matters, but people like corny jokes, so that’s it.
Removed by mod