- With exceedingly small differences which are probably neither important nor noticeable to most people.
Nobody expected the vote to be so hair-splittingly close.
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split hairs — 1. noun Tedious details; minutiae. The Microsoft trial had been in danger of slipping out of the public eye. Its endless procession of less than riveting economics professors and forgetful executives, mixed with scads of legal and technical split … Wiktionary