Observing aging peers in rural settings creates a reflection on one's own remaining life span.

“you're sitting at a table with going well I remember when I met you guys 22 years ago and everyone was healthy and vibrant and we were talking about our kids were young and now everyone's got Ms and cancer and I'm just sitting there going how how did I dodge these bullets”

Thinking about one's own death is a daily occurrence.

“I think about death every single day”

Matt McCusker constantly performs mental calculations regarding his remaining lifespan since turning forty.

“I've been on a heavy death trip since since I turned 40 really I do constant death math like how many years you have left”

He finds that approaching birthdays as a time for personal reflection is a productive way to handle the aging process.

“I like this perspective that you bring now that's like make it a reflective time yeah not necessarily like a celebration time as much it is like what where are we what has happened we're still here”

Humans should acknowledge their limited lifespan to avoid being crushed by the inevitable passage of time.

“The Wheel of Time you have a choice either to ride this wheel and make life into a fantastic process or be crushed by this whe”

The awareness of impending death acts as a chronic impetus for human behavior that often manifests as a quest for meaning, status, and symbolic immortality.

“the uniquely human awareness of death and when I say that Danny I'm not saying that if you're an antelope and you're about to be eaten by a hungry lion that has its jaws around your head my guess is that you know that things are not going well but only humans are aware of Death”

The awareness of mortality and the finite nature of life serves as a tool to live more intentionally and to prioritize meaningful connections.

“but the gift that I got was this incredible branding that life is short it's unpredictable you never know and from then on I've been walking up escalators I just that's the way I live I'm very intentional I don't take anything for granted”

Mortality can be accurately predicted to the month by analyzing large pools of data that include medical records and demographic information.

“If we got 10 years of medical records on you and 10 years of demographic data, we could tell the insurance company how long you had to live to the month.”

Epigenetic clocks, particularly GrimAge, provide a mathematically validated way to estimate instantaneous mortality risk.

“what does grimage really measure in a mathematical sense? What does it measure? It really measures the instantaneous hazard that you drop dead. I always say to people, it's your risk that you will die in the next year.”