#faora

This can be read in several ways. it might just be a phrase because Guardians are known to not age. She knows Osiris must be the same as he was when he was rezed and she knows that he's been around for a while, given that he's a well-known Guardian. Or maybe she's also been around for a while and has seen him before; while she aged normally over the centuries, he didn't.

But that also becomes a problem with his exile because that would mean she would have to have seen him for a while before his exile and then years would've passed during the exile and she's still around now, which would make her quite significantly old (and would also prove extended lifespans). But we have no real proof of this.

Speaking of Osiris and his exile, there is one other specific piece of evidence, but it also depends A LOT on how well we can estimate when certain events happened.

Sister Faora! She led the Cult of Osiris at the time of Osiris' exile (and for ?? years after). We know this because she got to meet Osiris merely weeks after his exile:

The weeks since his departure from the Last City have worn on him.

The last time she appeared in the setting (in-game wise) was around House of Wolves; after that, she was no longer mentioned. I honestly thought she died of old age and that this wasn't important enough to mention because she's a fairly niche character.

But she didn't die. She appeared in the City during Season of the Deep. And it's not a story of something from the past, it's her being in the City in the present time because she meets with Shayura who is mourning Reed-7's death (which occured at the start of Lightfall). This now gives us a unique insight because she's a normal Lightless human, and we have two specific points of reference: Osiris' exile and the Witness' attack on Earth in Lightfall. We would just have to figure out how long it's been between these two events, which is where the problems start and assumptions must be made.

My first assumption is that Faora must've already been old-ish when she was the leader of the Cult back during Osiris' exile. I think it's reasonable to assume this, given her position as a leader. I always thought she would've been at least 40 or older at the time of speaking to Osiris after his exile.

The first problem is the timeline of Osiris' exile. We know he was exiled around Twilight Gap which brings us to problem 2: when was that? This leads to assumption 2: Twilight Gap happened at least a century ago. There's some evidence to this, namely Osiris saying the following:

They were young, and nearly a century of navigation through the Infinite Forest had honed Osiris's ability to remain unseen.

But does this refer to the time passing in general or the time dilation in the Forest? So the problems continue. It's basically impossible to tell what's the time span between these events; both the Great Disaster (for the question of Eris' age) and Twilight Gap are notoriously hard to place, even in relation to each other. This has been an ongoing debate for years.

If Twilight Gap is not that long ago - maybe a few decades - then Faora's age could probably be within normal limits, though depending on her age at the time of Osiris' exile, she could be pushing 100 or more. So even if Twilight Gap was less than 50 years ago, Faora could still be too old for non-extended lifespans.

She would have to have been in her 20s and Twilight Gap would have to be at max 50 years ago for her to be within a reasonable current age if the lifespan is not extended. Both of these estimates feel too low to me, especially Faora's age as an established leader of the Cult with a lot of authority. As I said, I imagined her being at least 40-50 at the time of speaking to Osiris.

And Twilight Gap has to be at least several decades away. I find it hard to believe that the Gap happened like 20 years ago; it's always talked about like Guardian history and its relation to Osiris' exile is fairly significant as well, so I'd give it at least a century, which also matches with Osiris' statement. If Twilight Gap happened at least a century ago and Faora was at least 40 at that time, she would have to be 140 right now which I think would suggest extended lifespan. However, depending on how we do the estimates, she could easily also be around 60-70.

But the truth is, we don't know. Much like the timeline, I think this is also very deliberately vague. I think it's very possible that the lifespans are still extended, or perhaps that there is some middle ground. The original Golden Age lifespans are still out of reach but the technological advancements in the current age combined with everything the Traveler has done to the system in the Golden Age allow for humans to push past what we have today. So maybe they can't get to the projected Golden Age 300 years, but possibly being 150 or 200 isn't out of reach.

Unfortunately, we don't really know for sure. We could probably go into analysis of every normal mortal human character mentioned and try to figure things out, but there will be confusing and contradicting evidence all over the place, keeping this fairly vague. And there would also be the issue of individual outliers; either those that live longer or die younger for reasons unrelated to aging.