Well, there is no better thing to do than writing my blog when one is stuck at the Eurostar without knowing how long the delay will be. Apparently, there is a flaw with the communication system, so no announcement can be made.
My advice is:
1) Avoid getting “worked up” (in particular when other passengers are getting impatient) as there is little that one can influence in a situation related to technical problem.
2) Make the best use of your “down time”. Read a book/magazine/newspaper. Write emails and send texts. How about (online) retail therapy? – Perhaps not the best idea as you may end up losing a fortune on top of losing your time due to the train delay :>
3) Smile :> and consider it an opportunity to exercise your calmness, mindfulness and creativity among other important lessons one can think of.
4) Be grateful (yes, I am not insane) – At least there is air-conditioning on the train (it is 34 degree outside, my friend), it will get cooler when I get home (hopefully tonight).
5) Lastly, there is some sort of (financial) compensation offered by Eurostar depending on the length of delay.