盖亚玩骰子吗?非达尔文选择的简单模型。

IF 3.5 3区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Astrobiology Pub Date : 2023-11-01 DOI:10.1089/ast.2023.0036
Rudy Arthur, Arwen Nicholson
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引用次数: 0

摘要

在本文中,我们介绍了一些基于掷骰子的简单模型,以探索解释行星可居住性的机制。我们的想法是在一个易于分析的环境中研究这些选择机制,将它们的结果与其他细节隔离开来,这些细节在更现实的模型中可能会混淆或模糊它们的效果。我们发现,在所有模型中,可观察到的利益,即骰子上显示的面值,随着时间的推移而“改善”。对于两个更受欢迎的观点,生存选择和顺序选择,这都归结于抽样效应。顺序选择的一个修改版本,有记忆的顺序选择,意味着系统随着时间的推移而改进的统计趋势。我们将讨论这一现象的含义及其与“居住悖论”和“盖亚瓶颈”的关系。
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Does Gaia Play Dice? Simple Models of Non-Darwinian Selection.

In this article, we introduce some simple models, based on rolling dice, to explore mechanisms proposed to explain planetary habitability. The idea is to study these selection mechanisms in an analytically tractable setting, isolating their consequences from other details which can confound or obscure their effect in more realistic models. We find that the observable of interest, the face value shown on the die, "improves" over time in all models. For two of the more popular ideas, Selection by Survival and Sequential Selection, this is down to sampling effects. A modified version of Sequential Selection, Sequential Selection with Memory, implies a statistical tendency for systems to improve over time. We discuss the implications of this and its relationship to the ideas of the "Inhabitance Paradox" and the "Gaian bottleneck."

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来源期刊
Astrobiology
Astrobiology 生物-地球科学综合
CiteScore
7.70
自引率
11.90%
发文量
100
审稿时长
3 months
期刊介绍: Astrobiology is the most-cited peer-reviewed journal dedicated to the understanding of life''s origin, evolution, and distribution in the universe, with a focus on new findings and discoveries from interplanetary exploration and laboratory research. Astrobiology coverage includes: Astrophysics; Astropaleontology; Astroplanets; Bioastronomy; Cosmochemistry; Ecogenomics; Exobiology; Extremophiles; Geomicrobiology; Gravitational biology; Life detection technology; Meteoritics; Planetary geoscience; Planetary protection; Prebiotic chemistry; Space exploration technology; Terraforming
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