let $ (\xi_i)_{I \ge 1} $ be identical independent random variable, taking value in $ (1,3]$
can we show:
$P( \exists N \in \mathbb{N}, \text{ s.t. } \forall k \ge 0, \prod_{i=1}^{N}\xi_{i+kN} > 6N ) =1 ?$
i.e, almost surely, for each consecutive block with length $ N$, its product is greater than its length?
I think law of large number may give clue for this problem, but do not know how to prove it. Thanks!