How Long Until Nobody Remembers You?

At first it's your friends and family. Then they're gone too. Maybe your name survives in some photo album, an old email account, a forgotten hard drive. Eventually even those disappear.

For almost everyone who has ever lived, there was a last person on Earth who remembered them. A final memory, and then nothing.

How long do you think that takes for an average person today? A few decades? A century? Longer because of the internet?

And does being remembered actually matter?