A common date for the celebration of Easter?

NLM: An Interesting Suggestion for the Easter Liturgy

Don Nicola Bux says this of his suggestion:

It could also, perhaps, facilitate the task presented in Vatican II, in trying to find a common date for the celebration of Easter “with our brethren who are separated from the communion with the Apostolic See” (cfr Appendix of the Liturgical Constitutions, n. 1)

A proposal, posted at De Unione Ecclesiarum: On calculating Easter
Towards a Common Date for Easter
Towards a Common Date for Easter

Catholic-Orthodox Consultation Urges Common Easter Date
Orthodox Ecumenists at work to create a commmon date for Pascha ...
7.4.99: TWO EASTERS? Towards a common date for Easter
THE DATE OF EASTER: SCIENCE OFFERS SOLUTION TO ANCIENT RELIGIOUS ...
A 1997 move for a common Easter date
Russian Prelate Urges World's Churches to Adopt Orthodox Dates for ...