May can at any time cancel Brexit by March 29. Parliament can not. It will be the only option left if the EU doesn’t grant an extension AND she wishes to avoid a No Deal scenario. Yesterday was the first time I heard her even mention canceling Brexit. In a normal universe, it would be politically suicide but 1) the lady is a survivor, 2) she can’t be thrown out for nine months and 3) it may beat the alternatives. There will be pressure on the EU now but not as must if No Deal was an option. Honestly regardless of this vote I think it still is.