This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.
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Ok, I don't know the cardinality of the space we are talking about, but since I have trouble imagining a language permitting an uncountable number of sentences, lets assume that the space is countable. What are the consequences of that?
If the space is countable, then as long as you can order the propositions in some way, say by complexity, you can assign non-zero probability to every proposition so the total adds up to 1, so you don't have the same excuse you have in the case of predicting which point in a continuous space is special for using infinitesimal probabilities.