Even a human being need to die before they have to reach in heaven. This is just a currency pair all those pumping news from UK and European has to somehow seem to lose steam for now while the pair seems to be getting exhausted for now to carry on further upward. Even if it's a bullish market in perspective of long term some pullback in intraday is enough to book some profit in the short term trades. Cable indicating somehow pullback for now IMO.