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In page Daisyworld:

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Later criticism of Daisyworld centers on the fact that although it is often used as an analogy for Earth, the original simulation leaves out many important details of the true Earth system.[citation needed] For example, the hypothetical system requires an ad-hoc death rate (γ) to sustain homeostasis, and does not take into account the difference between species-level phenomena and individual level phenomena.[citation needed] Detractors of the simulation believed inclusion of these details would cause the system to become unstable, making it a false analogy.[citation needed] These criticisms were countered by Timothy Lenton and James Lovelock in 2001, who argued that including further factors can improve climate regulation on later versions of Daisyworld.[6]