Eastwatch is about 2000 miles from Dragonstone. How quickly could a raven have flown that distance? Then Dany and dragons had to travel the same distance in order to ride to the rescue. π€
The implausibilities are stacking up faster and faster.
I like to think Bran sent a raven to Dragonstone before Jon even left.
shareYeah, upon first viewing a few days ago I found it quite absurd, I watched it again tonight and it seems the rest of the day, a full night, and most of the next day had passed. It's still quite unlikely that a Raven made it from Eastwatch-by-the-Sea to Dragonstone in that period of time, but maybe more time passed than it seems. There's also the matter of how quickly did Gendry get back to Eastwatch and Daenerys being able to leave Dragonstone and arrive north of Eastwatch in the same day.
Apply the same logic to Euron getting his thousands of ships in a matter of weeks, very implausible.