The European languages are
members of the same family. Their separate existence is a myth.
For science, music, sport, etc, Europe uses the same vocabulary.
The languages only differ in their grammar, their pronunciation
and their most common words. Everyone realizes why a new common
language would be desirable: one could refuse to pay expensive
translators. To achieve this, it would be necessary to have
uniform grammar, pronunciation and more common words. If several
languages coalesce, the grammar of the resulting language is more
simple and regular than that of the individual languages.