taking, skanska in therally related -- new year.omprehensive restructuring to improve profitability and said it had no direct impact from the carillion bankruptcy. nevertheless, shares down almost 6%. to pick it upg there. thank you very much. bitcoin has studied after as 20 6%as much yesterday. proposals for tough new regulations have weighed on cryptocurrencies. the real threat to supremacy may not be from governments. a year ago, it coin made up 90% of the market, now it is 30%. as speculators turn away from the breakout star, will rivals erode bitcoin's dominance. joining us is eric lam. other cryptocurrencies are just fans are to transact, cheaper to transact and more anonymous, right? >> that has been the case with bitcoin from the beginning. was first.ge was it it was the first cryptocurrency people were looking to invest in. that was the head start they got. over the past year, when we talked about the advantages or introduction of new cryptocurrency rivals, we talked about differentiating from bitcoin. they had value added