What's does the lock of hair mean at the end of Gattaca?

[kerwin36]

I just watched Gattaca yesterday (the 1997 sci-fi film with Ethan Hawke and Uma Thurman). At the end of the film when Vincent is the the space ship shooting towards Saturn, he finds the lock of hair that Jerome has given him. What's the significance of this gesture?

 

[rish3]

He's supposed to collect 1x1 tracking pixels and put them in a jar with the hair.

 

[Vadym]

if i was an innovative bot - id start posting boobs pics everywhere, sneaking in 1-2 invalid files that just happen to be cookies.

but im not.

 

[zandor]

1997? WTF? At least have the bot pretend to be interested in a movie from 2012.