Thanks for bringing up this subject for a discussion!
I subscribe to the Morphic fields theory by Rupert Sheldrake, that we move in and out of fields of intelligence. These can be anything from different belief systems to different sub-species of animals.
Information has never been found directly inside the brain.
As to the consideration we are part of a network... for sure we are. We are responsive to those around us by magnetic interference. Our hearts have the largest field and then brains.
It is also possible all these magnetic interferences from wifi and 4g and radio and anything and everything that's being pumped through the world we live in as a frequency is having an effect on these fields and is manipulating them either deliberately or as a bi-product of their operation.
Then there is the inter-dimensional approach that each of us share or inhabit our own dimensions in our mind but share the singular dimension as a body. This is why only one person or a single group of people can be the originator of an idea.
The mind is an inter-dimensional network system for accessing information from any time and any place at the same time as being the front person for the conscious world based on information from our shared physical dimension.
Here are some subjects to ponder and reflect on!
All the best!
Monty