Well uhhhh

Surprise?

@tulhakkar 😏

UUuuuuuhhhhhhh

No, no, Spike. They said she wouldn’t outlive her friends. You’re not her friend, you’re just her errand boy, fax machine, and general stooge. So hey! You’ll be keeling over any day now!
 
Yes, that’s a joke.

Don’t worry Spike, you won’t outlive Twilight. I’ll make sure of that :D

puts hand on spikes shoulder  
Spike, you and I are not very different.  
Spike, teary: What makes you say that?  
I too will out live someone I love dearly. We both will live for many years, as your life will be in the lengths of thousands. Fear not, I’ll still be with you.  
Spike: You will?  
By the blood in my veins, I promise that I will be your long-life friend. Even when I out live you.  
Spike wipes his tears away  
Spike: Well. Guess we will. Thousands of years.  
And with you being older and larger, thousands of adventures.  
Spike: Y’know? I’d like that.

@Background Pony #B797  
I do.

no one cares about spike

Bullshit

@Millennial Dan  
Curses! Foiled again.

@Background Pony #A02E  
Nah, we saw the pegasi clearing it away at the end of Dragonshy.

@Millennial Dan  
Unless it’s magic smoke.  
Hey crazier things have happened in the show ;)

@Jack Kellar  
Oh please…
 
Fine, we’ll go back to the first point. There’s no way smoke could cover Equestria for a hundred years if the dragon left. Pegasi can clear the skies in a pretty short period, so the dragon’s hibernation must be for the entire 100-year duration.

@Millennial Dan  
But MLP isn’t any of those mythologies, now is it? ;)

@Jack Kellar  
Doesn’t matter either way, dragons live practically indefinitely in just about any mythology.

Fun fact: it was only explicitly stated that the SMOKE would cover Equestria for a century. No one realized that it could still be around looooong after the dragon woke up and moved off.

@Drasvin  
I believe you are more or less correct in that line of thinking. I noted that Cadence, when her power was temporarily unified with Shining Armor’s and evidently greatly increased thereby, had that same shimmery, flowy mane that the sisters have.

@Zennistrad
 
Granny Smith was a young mare when Canterlot was still just a collection of tents and vendor stands, so she’s as old as a clearly ancient, historical city.

@Meresflut  
I’m not too sure that all alicorns are immortal. There seems to be at least 2 ‘tiers’ of alicorn. As Celestia and Luna (At least once her power built back up) have energy manes, while Cadance and Twilight do not. Especially given the fact that Luna didn’t have an energy mane right after her defeat, when the Elements left her weak after driving the nightmare presence out of her,but had one later when she would have recuperated, implies that it’s linked to the princess’s level of power (or at least magical energy)

*Phew!*
 
I was worried I wasn’t going to be able to suggest this movie to you people:  

You can never win.

@Background Pony  
Wow, I really begin to put more attention.

@Zennistrad  
I like the idea, myself. In Tolkien’s books, there was no end to the possibilities, since you just never knew if you were talking to a 200-year-old dwarf, a 150-year-old human, a 500-year-old elf, a century-old hobbit, or an ent that’s too old for reckoning.

The answer is obvious Spike. You must help Twilight create a phylactery and transform herself into a liche. Then, 500-score years hence, have Twilight perform a similar ritual to turn you into a dracoliche. You can remain at her side forever. >;)

@Background Pony
 
I think that was probably just a fuckup on the writer’s part.