|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||yesterday||43.05||$23.50||You save $19.55|
|Amazon US||3 days ago||35.91||$23.50||You save $12.41|
Bernardo Kastrup has a Ph.D. in computer engineering and has been a scientist in some of the world's foremost scientific laboratories. He researches and writes about metaphysics and philosophy of mind.