The Cathars did not all emigrate to North America. Catharism continued to exist in many parts of Europe until the mid-15th century. Even if it were Cathars that created the VMS (which is perfectly possible at the time), it doesn't mean it has anything to do with North America.
Blue and green water can mean many things, including hot or cold water, salt or fresh water, regular water or mineral water, or simply, "I'm almost out of blue pigment and I don't want to spend 3 hours grinding more so I'll use a higher proportion of green pigment."
The critters in the VMS are not drawn well enough to identify most of them. Plus, it was the custom at the time to draw many mythical animals or "generic" animals that were not intended to be any particular animal. You can't assume what they are just because you want to place them in the context of a North American swamp. Besides, even if it were swamp water, there are swamps all over Europe too, including in some of the hotter regions.
Blue and green water can mean many things, including hot or cold water, salt or fresh water, regular water or mineral water, or simply, "I'm almost out of blue pigment and I don't want to spend 3 hours grinding more so I'll use a higher proportion of green pigment."
The critters in the VMS are not drawn well enough to identify most of them. Plus, it was the custom at the time to draw many mythical animals or "generic" animals that were not intended to be any particular animal. You can't assume what they are just because you want to place them in the context of a North American swamp. Besides, even if it were swamp water, there are swamps all over Europe too, including in some of the hotter regions.
![[+]](https://www.voynich.ninja/images/collapse_collapsed.png)