It would be funny if it weren’t so tragic
The big solution, the thing that will save Brexit and deliver a new age of peace and prosperity and a refrigerator in every home is... a government IT project. With unstable requirements. Using untested and non-existent technology.
Given how Universal Credit has gone I suspect this may be completed some time after 2070.
Still, at least nobody has mentioned blockchain yet, as predicted here: http://brexfest.eu