And if you add more and more polarizers angled the right way, more and more light passes through, until in the limit you reach 1/2 the initial intensity, see ht

And if you add more and more polarizers angled the right way, more and more light passes through, until in the limit you reach 1/2 the initial intensity, see https://aip.scitation.org/doi/pdf/10.1063/1.4943751 https://aip.scitation.org/doi/pdf/10.1063/1.4943751