Israel/Palestine

impossible.

I can't see how any land swaps can make Palestinian communities that are strangled by the settlements more viable. East Jerusalem is a good example; if the Jewish settlements aren't removed, it will be a cul-de-sac with nowhere to expand and no connection to other Palestinian cities. I really see no possibility of land swaps that would create a viable Palestinian state while leaving most or even a few of the settlements intact.

I think your assessment of the minimum requirements for a Palestinian state is too optimistic. Here's some background info about the economic situation in the occupied territories that confirms my view:

The economic costs of the Israeli occupation for the occupied Palestinian territory September 2011
Source: The Palestinian Ministry of National Economy and the Applied Research Institute - Jerusalem
http://www.un.org/depts/dpa/qpal/docs/2012Cairo/p2%20jad%20isaac%20e.pdf

East Jerusalem 2015: Facts and Figures
Source: Association for Civil Rights in Israel, May 2015
http://www.acri.org.il/en/wp-content/uploads/2015/05/EJ-Facts-and-Figures-2015.pdf

Palestinian Authority Incurs US$285 Million in Annual Fiscal Losses
Source: The World Bank