Galen Strawson on Panpsychism

We make powerful motor cars by suitably assembling items that are not themselves powerful, but we do not do this by 'adding in the power' at the very end of the assembly line; nor, if it comes to that, do we add portions of power along the way. Powerful motor cars are nothing over and above complex arrangements or aggregations of items that are not themselves powerful. The example illustrates the way aggregations can have interesting properties that the items aggregated lack. What can we say of a general kind about what can be made from what by nothing over and above aggregation? I think that this is the key issue that Galen Strawson (2006) puts so