These faces aren't really that similar. The doppelganger effect is mostly coming from similar clothing, hair style, facial hair, glasses, and so on. To use an

These faces aren't really that similar. The doppelganger effect is mostly coming from similar clothing, hair style, facial hair, glasses, and so on. To use an example, look closely at the features one by one of the two men. Individually they're all pretty significantly different. But your eyes gloss over the differences because the hair, glasses, and beard are nearly identical. However those are all changeable features. Grow the hair out, shave the beard, and lose the glasses on one of them and they'd be far less doppelgangery.