Anons talk about filtering, but we have to know that introducing information into the unconscious below the level of user awareness is easy.
We know information introduced this way is retained in memory and influences future decision making. There a lot of bad things an adversary can do to harm you with access to the unconsciousness through the high bandwith optic pipe
The Unconscious mind (not the 'subconscious that implies subservience) is the dominant component of our dynamic consciousness as far as most (non formal) decision making.
Be very cautious about VR, especially over the internet and especially from FB and especially right now.
Binocular rivalry is easy to exploit in VR . As long as there a moving image in the dominant eye, ill disposed individuals can introduce information in the other eye below the level of conscious awareness.
https://www.frontiersin.org/articles/10.3389/fnhum.2011.00129/full
The technique doesn't work so well with autists…
https://www.ncbi.nlm.nih.gov/pubmed/28301094
We need VR and MR but we can't safely use either without complete confidence in the integrity of our networks and the people who created the VR/MR environment.