steve_bank
Diabetic retinopathy and poor eyesight. Typos ...
There are a number of time lines on the net. This one summarizes all the potential hazards. Asteroid strikes, gamma ray bursts.
https://en.wikipedia.org/wiki/Timeline_of_the_far_future
While the future can never be predicted with absolute certainty,[1] present understanding in various scientific fields allows for the prediction of some far-future events, if only in the broadest outline. These fields include astrophysics, which has revealed how planets and stars form, interact, and die; particle physics, which has revealed how matter behaves at the smallest scales; evolutionary biology, which predicts how life will evolve over time; and plate tectonics, which shows how continents shift over millennia.
All projections of the future of Earth, the Solar System, and the universe must account for the second law of thermodynamics, which states that entropy, or a loss of the energy available to do work, must rise over time.[2] Stars will eventually exhaust their supply of hydrogen fuel and burn out. Close encounters between astronomical objects gravitationally fling planets from their star systems, and star systems from galaxies.[3]
Physicists expect that matter itself will eventually come under the influence of radioactive decay, as even the most stable materials break apart into subatomic particles.[4] Current data suggest that the universe has a flat geometry (or very close to flat), and thus will not collapse in on itself after a finite time,[5] and the infinite future allows for the occurrence of a number of massively improbable events, such as the formation of Boltzmann brains.[6]
The timelines displayed here cover events from the beginning of the 11th millennium[note 1] to the furthest reaches of future time. A number of alternative future events are listed to account for questions still unresolved, such as whether humans will become extinct, whether protons decay, and whether the Earth survives when the Sun expands to become a red giant.
7.8 million years
Humanity has a 95% probability of being extinct by this date, according to J. Richard Gott's formulation of the controversial Doomsday argument, which argues that we have probably already lived through half the duration of human history
https://en.wikipedia.org/wiki/Timeline_of_the_far_future
While the future can never be predicted with absolute certainty,[1] present understanding in various scientific fields allows for the prediction of some far-future events, if only in the broadest outline. These fields include astrophysics, which has revealed how planets and stars form, interact, and die; particle physics, which has revealed how matter behaves at the smallest scales; evolutionary biology, which predicts how life will evolve over time; and plate tectonics, which shows how continents shift over millennia.
All projections of the future of Earth, the Solar System, and the universe must account for the second law of thermodynamics, which states that entropy, or a loss of the energy available to do work, must rise over time.[2] Stars will eventually exhaust their supply of hydrogen fuel and burn out. Close encounters between astronomical objects gravitationally fling planets from their star systems, and star systems from galaxies.[3]
Physicists expect that matter itself will eventually come under the influence of radioactive decay, as even the most stable materials break apart into subatomic particles.[4] Current data suggest that the universe has a flat geometry (or very close to flat), and thus will not collapse in on itself after a finite time,[5] and the infinite future allows for the occurrence of a number of massively improbable events, such as the formation of Boltzmann brains.[6]
The timelines displayed here cover events from the beginning of the 11th millennium[note 1] to the furthest reaches of future time. A number of alternative future events are listed to account for questions still unresolved, such as whether humans will become extinct, whether protons decay, and whether the Earth survives when the Sun expands to become a red giant.
7.8 million years
Humanity has a 95% probability of being extinct by this date, according to J. Richard Gott's formulation of the controversial Doomsday argument, which argues that we have probably already lived through half the duration of human history
