Because you have to re-invent building the wall.. the X3 process is incompatible with X4dholmstr wrote: ↑Sun, 3. Mar 19, 20:31 And with Duplo you did a wall with a window, same wall-window can be build with meccano just more detailed. Why must we invent a whole in the wall for a window all over again, just becouse we got new pieces? But this is another discussion, sorry for hijacking you post OP.
In X3 building a station was
container unloaded in to space as a single box-structure
In XR building a station was
assemble 1+ modules
with each module assembled from pre-set subcomponents
In X4 building a station is
assemble 1+ subcomponents with no restrictions
There isn't a huge difference between XR & X4, mainly we now have all the individual components thrown together into a box
and we can draw them out and assemble them in any order or combination that we want
it's the moving away from a station being a single self-contained unit that causes the lack of compatibility
that was a process that began in XR and it has been enhanced and improved in X4