Politicians in catalonia remain united in their determination . Well, its a volatile situation, and our diplomatic editor mark urban is outside the parliament. Is that a city in turmoil this evening . Its not, and in fact, the demonstrations we saw earlier in the day from militant separatists not really more than a few thousand, even those have dissipated now and the streets are largely quiet. But everyone you talk to hear is full of a sense of anticipation about tomorrow. Now, if there are people that dont believe in quitting spain, its anticipation tinged with trepidation. The separatists, it is tinged with possibility. People in the Centre Ground of politics here, a parallel with brexit, they believe if the Parliament Vote tomorrow is one of separation, somehow things will be sorted out, and life will not change in a major way. But still, all sorts of tensions on the two flanks of this question. Can either side back down now, that is the crucial question this evening . You are right