A Revolutionary Take on Yom Tov Sheni, A Teshuvah from the Cairo Genizah

First in series (IYH) on Minhag Avoseihem b'Yedeihem/Al Teshanu Min ha'Minhag.

You can find the teshuvah at:

https://drive.google.com/open?id=1I4_f-f5j7o1y0PEYnGT1KVIcZpi0LQ3Y