Why do you call it "Biologically Possible" neural networks?

A lot of researchers have called their neural networks "biologically plausible", but in fact most of these network contain elements that are literally impossible according to known biology.  So IMHO the term "biologically plausible" is somewhat discredited by past abuse.  My aim is stay within what is known to be possible according to our current understanding of biology, so I call it "biologically possible".

Is there any source code?

Not yet, but source code is coming soon to GitHub..

Why are you doing this?

It's what I'm interested in, and no one else seems to be taking this approach.