How many developers behind Bitcoin VS Bitcoin Cash ?

[loungeclaus]

Hi, this is my second questoin, so i'm still a big noob and sorry for that.

I saw on the twitter of Bitcoin Cash this image : https://ibb.co/hsrrpb

Are they right about the number of teams ? What does it means for you ?

I saw also an interesting tweet from Jameson Lopp "we found that the best predictor of a cryptocurrency's exchange is the amount of developer activity around it"

How to know the number of developer working into a cryptocurrency ?