It is time we explored more radical alternatives. This does not mean giving up on science, it just means broadening our conception of what science is. This issue of Philosophy Now samples the work of four philosophers who specialise in consciousness (including myself). Each of us explores alternatives to conventional materialism. It is early days in the science of consciousness, and time will tell whether any of our approaches will bear fruit. But at the moment the spirit of free enquiry needed to make progress on consciousness is being hampered by an ideological insistence on the materialist paradigm – an ideological insistence not so dissimilar to that experienced by Galileo from the 17th century Catholic Church.