I want to know the answer to the following question:
Although there are challenges a unified European alphabet is feasible even in the absence of which common language rule?
All the background I'm provided with is that "As briefly discussed in Unicode Technical Note #26, "In terms of implementation issues, any attempt at a unification of Latin, Greek, and Cyrillic would wreak havoc [and] make casing operations an unholy mess, in effect making all casing operations context sensitive […]".". Is that enough to answer the question?