As the title says – I’m wondering how we can really use fingerprints accurately, when there could be so many variables which could alter your fingerprint, especially so that a partial print might be altered. Is it just based entirely on the ridges/patterns? Do they really not change much at all, even if you lose/put on weight, are really cold/too warm, damage your skin eg scratch or burn your fingertips, have been in the shower so your fingertips go all raisin-y, or you’re applying less pressure one time and more the next?
Sometimes when I’ve been in the bath or have been cleaning or whatever I struggle to unlock my phone with my Touch ID haha, so I wonder how reliable fingerprints actually are.
In: Biology
Actually, they are.
I’ve heard tales of people employed in heavy hands-on work not being able to provide a fingerprint.
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