If someone ignores when you are face to face, that's a simple well defined shadow.
With cell phones and messaging, ignoring someone or being ignored can now take so many forms.
The live pattern becomes virtual and diversified in so many possible variations.
Someone can ignore your messages, respond days later, not reply to your questions, change topics, react, not listen, interrupt you, abandon chat at a sensitive moment and so much more.
This can happen in multiple chat platforms.
It can happen with email or voice messages.
"Ignoring someone" is just one virtual challenge!
You have so many!
The list is endless!
I could write a complete shadow system targeted uniquely to the virtual reality!