Hah, it's funny you mention black goo.

I'm actually subscribed to a Telegram channel (which happens to be in Spanish) with the name BLACK GOO.

https://t.me/blackgoo13

It has lots of videos on transhumanism and other topics related to Black Goo, graphene oxide, etc., but you do need to know Spanish to make sense of much of it.

My Spanish is probably at a 5th-6th grade level but it's enough to parse much of the info.

And disclaimer, some of the shit is completely fake. LOL

Edit:

There's also legitimate articles in Spanish that are quite scary.

https://elpais.com/elpais/2018/08/01/ciencia/1533121655_099270.html

Archived translated article- https://archive.ph/8IX74