Just a short comment. I am always surprised when some people criticize others for changing their mind? Isn’t this what science is about? We should always be flexible enough to learn new things and then change our opinion. What was a right (whatever this means) decision and useful some time ago may be not appropriate in a new context some time later. Nevertheless, this does not mean that we should not try to go new ways or try to develop unconventional solutions for (old) problems simply because all others go the same route again and again. Following our intuition and believes and still being flexible enough to correct them through learning is a strength and not a weakness – doing things simply because ‘this is how things are done’ is.

As one commentator has noted, science proceeds by funerals. (Ian McEwan from ‘What We Believe
but Cannot Prove’) .