the.com/problem of induction

means It's the puzzle of why we're ever justified believing the future will resemble the past, when the only evidence we have for that principle is... that it's worked in the past.

from 'Problem' traces to Greek 'problema' — something thrown or put forward, a task posed for solving. 'Induction' comes from Latin 'inducere,' to lead in or bring on, via the logical sense of leading from particular cases to a general rule. The philosophical problem itself is most famously associated with the 18th-century thinker David Hume, who pointed out that inferring future patterns from past regularities relies on an assumption — that nature is uniform — which can't itself be proven without circularly appealing to past experience. The phrase 'problem of induction' became the standard name for this puzzle in later philosophical discussion, not coined by Hume himself but built on his argument.