[ryanhiebert]

I’d be really interested in an analysis of tau in light of this discovery. Would tau fit more naturally here than pi, as it does in other examples?

[adornKey]

The construction so far uses ln(-1) to get to pi - so far no easy way to tau.

[adornKey]

So, to follow up I'd say in the context of EML I think ln(-1) = pi*i is the natural fit. Pi and Tau are both more advanced constructs.