[muir_redwoods]

I believe the point is it’s been isolated for a billion years well below the aquifers most wells reach. The presence of methane and free hydrogen might indicate life forms isolated for a billion years. Could br interesting.

[yldstrk]

well that is different than what the headline said, and I highly doubt the water has been sealed off for a billion years if that is what the point is

[Nailbiter]

Could be interesting-——— Waiting for the first grant worth quadrillion dollars to be awarded to study this billion year old water

Yes I am cynical

[UCANSEE2]

The presence of methane and free hydrogen might indicate life forms isolated for a billion years.

I would guess that an organism isolated like that would remain 'unchanged'.