I used to say that I'll probably change most of my opinions in the coming decade, but it is probably not true anymore; less than 50% will be changed in 2019, if I still live.
That is because the (few) opinions I have are quite well tested.
(There is also a distinction between my opinions and my more numerous "working hypotheses".)
I think this is a personality thing (as well, perhaps). Some people seem very able to process new information in a discussion / argument, and either evolve their viewpoint or completely change their mind.
Others, me included, do need the time afterwards to process that information.
I used to say that I'll probably change most of my opinions in the coming decade, but it is probably not true anymore; less than 50% will be changed in 2019, if I still live.
That is because the (few) opinions I have are quite well tested.
(There is also a distinction between my opinions and my more numerous "working hypotheses".)