Computers should never be compared to a human brain. Computer just don’t measure up. What we know about the brain is amazing, what we don’t is unknown (I can just hear Rumsfeld now… [sorry down that path leads to insanity] ).
In this video you can watch Autodesk creating a mental model of their future, using old school pen & paper and see some cool technology. If you have created an Agile Road Map you will recognize the process, but this will explain why it can be so powerful to put all the stickies up on a wall and just look at them.
A metaphorical model of the mind - Dave Gray
Information Processing theory of Mind - Simply Psychology org
The Empty Brain - Your brain does not process information, retrieve knowledge or store memories. In short: your brain is not a computer - by Robert Epstein