Awesomecrunch theory: Subnautica is set ~10 years before NS2, Player responsible for Kharaa
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US Join Date: 2016-10-06 Member: 222906Members
US Join Date: 2016-10-06 Member: 222906Members

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Please, trust me...
Sky rays don't touch water at all they live on landmasses try scanning one and it will tell you about it
They still need to drink. And eat on land. Where Cave Crawlers walk about, which do get into water, so can transfer the bacterium to the surroundings where Skyrays live, thus infecting them.
Sure, but given the fact, that those skyrays would leave trace amounts of carar OUTSIDE, the bacteria shouldn't survive the flight.
On the other hand, we can simply bring some on our swimsuit's surface...
That leads us to a large plot hole: why didn't the Player take any sample of Enzyme 42? Without a proper cure and a way to replicate/reproduce it, leaving a quarantined planet is a VERY bad idea...
Another thing is, that people could have ran into the disease on one of many planets, that the Precursors had unintentionally infected.
They might survive. Search for panspermia. Maybe that's even how the Precursors infected so many planets.
This!!