on adding bells and whistles to CTRNNs

the discussion about reasons for and against adding bells and whistles to CTRNNs has come to be almost a daily thing in our lab. i will try to expose here first what the types of extensions to the model can be, then i will try to explain what i think is at least a subset of reasons for people wanting the whistles and the bells followed by my reasons for thinking they are either wrong or asking a question which is not of interest (at least to me).

[1] types of bells and whistles

[2] why some want to add them

[3] why this is not needed

note: will be writing this in for a couple of days..