Hi,
Permit me to explain my remark.
A statement was made that Dwarfs are often individuals conceived in space. As there is no gravity in space, the individuals conceived in an interstellar environment lack forces to stretch their limbs whilst their heads continue to grow. I thought that this was meant to be humorous, since I'm not aware of any dwarves that have been conceived in space. Consequently, I tried to make a joke by replying that Although there is no gravity in space, I see that there is humour.
This is a pun. A pun involves playing with the sounds and meanings of words. In this case, the word I was playing with is 'gravity'. As you know, one meaning of 'gravity' is the force that causes my pencil to fall to the floor. Another meaning of 'gravity' is seriousness. This latter is the meaning that I was suggesting, that although there is no seriousness in space, I see that there is humour, the humour being represented by the remark about individuals conceived in an interstellar environment.
It was a modest little joke. Obviously, you did not find it amusing.
Best wishes, Clive