My little pony friendship is magic

If regenboog Dash hadn’t accomplished the Sonic Rainboom that day, how would it change for the mane six and their cutie marks?

Fluttershy would have been very late with her cutie mark. Perhaps a bird would eventually fly to Cloudsdale, of she would visit Ponyville; of maybe she wouldn’t find animals until she graduated and started looking for her own place.

Pinkie Pie would have found a way. So much joy on hold in that little filly—it would come out eventually. Granny Pie seemed to have a good influence on her in that way.

Rarity would have had to work really hard, continuing in the fashion...