On Monday night the second annual Blockchain Cruise left Singapore with 600 digital currency investors on board. Each would have made millions in cryptocurrencies over the past few years, and with Bitcoin hovering around the $13,500 mark when the ship set sail, there would be little worry amongst those on board.

Fast-forward to the end of the week, and the dramatic fall in bitcoin valuation has meant that many of those on the trip would have lost millions as Bitcoin fell to around $10,000. It doesn’t seem to have fazed many on board, however, even if that might have something to do with the private beach and bottomless drinks being served as they sailed into Thailand on Wednesday.

The majority of seasoned cryptocurrency investors expect the volatile fluctuation in prices that has been a theme of bitcoin and other digital currencies since their inception. There might have been a massive drop in the last week, but there was a similar phase at the start of 2017, and the general trajectory remains up.

It is safe to say that any sceptics warning of a bitcoin bubble burst should first take a look at the exuberance amongst this Blockchain Cruise crowd and the optimism that the only way is up, just not in one fast and straight line.