A situation like that is becoming much less likely. Fragmentation is not impossible. However, everywhere in the world, we are seeing the number of parties increase. So a danger arises in the first or second elections because, if there are not enough parties, coalitions have to be formed in an intelligent way. Let me explain.
At the moment, we cannot imagine a lot of coalition combinations that can possibly form a majority government. To form coalitions, there have to be enough parties. So, with no fragmentation—there may be some, but it may only happen after at least three elections, the equivalent of 12 or 15 years—we still may have those two blocks bumping into each other for several years. That could end up falling apart.
I know that there were still two major blocks in Spain when I was there in 2000.