Abstract

The Fine-Tuning Argument (FTA) is an argument put forward by proponents of theism, in which they attempt to make a case from Bayesian inference, that the [apparently] fine tuned constants of our universe is more likely given a theistic hypothesis, than a naturalistic one. Some naturalists argue that this is not the case given the Multiverse (MV) hypothesis (that our universe is one of a plurality in a broader multiverse). The MV hypothesis is rejected by theists who argue it commits what Ian Hacking (1987) referred to as “the Inverse Gambler’s Fallacy”. In this paper I will attempt to demonstrate [what I perceive as] the errors in logic made by theists first in positing that a life-permitting universe (LPU) is improbable under the naturalistic-single-universe (NSU) hypothesis, and subsequently the errors in arguing that the MV hypothesis commits what Ian Hacking (1987) referred to as “the Inverse Gambler’s Fallacy”. First, I will attempt to demonstrate why an LPU is not improbable under the NSU. Second, I will attempt to demonstrate that if we ascribe a probability value to our LPU, we can directly infer either an MV or the existence of “Deeper Laws” (Barnes, 2020) from that probability value.