Oliver Morton, Eater of Sun
@eaterofsun.bsky.social
Author, Editor @ The Economist, Chair @ The Degrees Initiative. Climate change, planetarity, critical zones, tv, burdens of life, etc. Reposts are not endorsements
Reposted by Oliver Morton, Eater of Sun
Its conclusion echoes something the magnificent Kevin Zahnle said to me over coffee maybe 20 years ago: that "the frequency of atmospheres showing signs of biogenic oxygen is the most interesting question we [=humankind] know how to answer".
November 29, 2025 at 1:36 PM
Its conclusion echoes something the magnificent Kevin Zahnle said to me over coffee maybe 20 years ago: that "the frequency of atmospheres showing signs of biogenic oxygen is the most interesting question we [=humankind] know how to answer".
I think it's become influential in part because of Andy's work on/development of it, which I find much more interesting than Carter's. Also Szathmary and JMS's "seven major transitions" gave it a tacit boost.
November 29, 2025 at 4:20 PM
I think it's become influential in part because of Andy's work on/development of it, which I find much more interesting than Carter's. Also Szathmary and JMS's "seven major transitions" gave it a tacit boost.
Moisture?
November 29, 2025 at 2:10 PM
Moisture?
"Sleeves? Where we're going we don't need sleeves!"
November 29, 2025 at 2:02 PM
"Sleeves? Where we're going we don't need sleeves!"
In the meantime, though two quick points
a) the Earth's carbon cycle (and thus its biosphere) runs down waaaaay before the red sub giant stage.
b) if you live in the Oort cloud, as God and Freeman Dyson intended, the change from yellow dwarf to red giant to white dwarf might not worry you much
a) the Earth's carbon cycle (and thus its biosphere) runs down waaaaay before the red sub giant stage.
b) if you live in the Oort cloud, as God and Freeman Dyson intended, the change from yellow dwarf to red giant to white dwarf might not worry you much
November 29, 2025 at 1:40 PM
In the meantime, though two quick points
a) the Earth's carbon cycle (and thus its biosphere) runs down waaaaay before the red sub giant stage.
b) if you live in the Oort cloud, as God and Freeman Dyson intended, the change from yellow dwarf to red giant to white dwarf might not worry you much
a) the Earth's carbon cycle (and thus its biosphere) runs down waaaaay before the red sub giant stage.
b) if you live in the Oort cloud, as God and Freeman Dyson intended, the change from yellow dwarf to red giant to white dwarf might not worry you much
Its conclusion echoes something the magnificent Kevin Zahnle said to me over coffee maybe 20 years ago: that "the frequency of atmospheres showing signs of biogenic oxygen is the most interesting question we [=humankind] know how to answer".
November 29, 2025 at 1:36 PM
Its conclusion echoes something the magnificent Kevin Zahnle said to me over coffee maybe 20 years ago: that "the frequency of atmospheres showing signs of biogenic oxygen is the most interesting question we [=humankind] know how to answer".
Do you have a source for the £1m
November 29, 2025 at 12:52 PM
Do you have a source for the £1m
actually no -- they wouldn't let me log in to either, but seems fixed now
November 27, 2025 at 4:48 PM
actually no -- they wouldn't let me log in to either, but seems fixed now
Yes tx, or at least seems to have
November 27, 2025 at 4:48 PM
Yes tx, or at least seems to have
Tx. But didn't add any devices to begin with.
November 27, 2025 at 10:48 AM
Tx. But didn't add any devices to begin with.
because they really want to live on Tracy Island?
November 27, 2025 at 10:46 AM
because they really want to live on Tracy Island?