SINGAPORE: Bitcoin rallied again on Wednesday after retreating briefly from an all-time high it set less than 24 hours earlier, as bulls showed few signs of pulling their bets on the world's largest cryptocurrency. Bitcoin jumped 5% during the Asian session to an intraday peak of$ 66, 540 in volatile trading, not too far from Tuesday's record high of$ 69, 202.... It was last 4% higher at$ 65, 946. The digital asset's meteoric rally-having already surged 55% for the year so far-has been fuelled