Dr. Alex Wissner-Gross(@alexwg):Conversations in Action episode #12, with @NaginCox at @NASAJPL, is out. She estimates: - a 60-70% probability that past life existed on the surface of Mars [40:35]; - the first human will land on the surface of Mars by 2040 [58:26]; - humanity will reach a population of at least 1,000 people living on Mars by 2055 [1:00:01]; - double-digit probabilities for life on outer solar system moons [49:49]; and - discovery of non-human intelligence by 2050 [1:04:45].

Dr. Alex Wissner-Gross

@alexwg

Physicist, computer scientist, entrepreneur, investor. Accelerating the Singularity. Co-host of Moonshots. Author of The Innermost Loop.

Joined November 2007

3.6K Following 73K Followers

Dr. Alex Wissner-Gross@alexwg

2026.09.11 17:20

Conversations in Action episode #12#, with @NaginCox at @NASAJPL, is out. She estimates: - a 60-70% probability that past life existed on the surface of Mars [40:35]; - the first human will land on the surface of Mars by 2040 [58:26]; - humanity will reach a population of at least 1,000 people living on Mars by 2055 [1:00:01]; - double-digit probabilities for life on outer solar system moons [49:49]; and - discovery of non-human intelligence by 2050 [1:04:45].

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