A computer designed by hobbyists to look like a brain on display at a Berlin fair in 2012. What happens when we go from crude models to complete working simulations of this all-important organ? Britta Pedersen/DPA/AFP/Getty Images hide caption toggle caption Britta Pedersen/DPA/AFP/Getty Images Opinion 13.7: Cosmos And Culture Is Freedom Just An Illusion? Maybe We Don't Want To Know February 26, 2014 As we learn more about the brain, we should ask whether learning too much might, ultimately, compromise our freedom. Simulating reality could be a threat to reality, warns commentator Marcelo Gleiser.