The following is an answer and/or comment by inhahe aka ColorStorm (inhahe.com - myriachromat.wordpress.com).

Lufasa Mufasa: Have you ever completely reversed your opinion of something? If so, what was it, and how did you come to reverse your opinion?

ColorStorm: I can think of two things.

1. I used to be a Christian, because I was raised that way from Age 5. At about 17 or 18 I began to think for myself and realized some of its precepts were crap, like the idea that Jesus died to atone our sins--guilt can't be a commodity, something to be traded between people.. if there's any reason for judgment and condemnation, then it's because you did the thing, not because anybody else did. The whole reason for judgment, if there's any logic it at all, is inextricably tied with what that act implies about one's nature. And if god wanted to forgive somebody or some group of people, he could do it directly just by making it so; he's omnipowerful, so he wouldn't need Jesus to die just to make that happen.

It took me a year or two to fully rescind Christianity due to the lingering fear that if I was wrong I could be eternally damned for it. The longer I was freed from Christianity the more perspective I gained, slowly over time, and the more and more it became obvious to me how utterly ridiculous it all is and how it's just a congenitally spread mind-virus for people who aren't bright/logical enough ever to mentally break their way out of that paper bag. It's sad and tragic that so many people are inflicted with it and I hate Christianity now.

2. I used to be a republican. I changed my mind somewhere between the ages of 18 and 22, I know that because when I was 18 I registered as republican and I think I voted for Ross Perot and I remember the year when Bill Clinton won out over George Bush Sr. I had been hoping George Bush Sr. would win and thought that America was stupid for not seeing that Bill Clinton was obviously a lying sleazeball. Now I would definitely vote for Bill Clinton. In 2000 I think I voted democrat.

I now think republicans are selfish, hateful and paranoid, and I think that's pretty much what I was when I was a republican. I also think they're compelled by base, crude and fearful emotions and tend to think overly simplistically and idealistically (like thinking Adam Smith's invisible hand would solve all economic problems, for example, and being influenced by sources such as Fox News which is a complete joke and actually won in court when sued for lying on the basis that a news source is not obligated to tell the truth), and that they're generally in denial of reality, such as being climate-change deniers, despite over 90% of scientists concluded that human-caused climate change is a reality, because observing what we're doing to the planet goes against their ideal of unbridled capitalism, and that they're generally of lower intelligence than democrats, which I've heard has been statistically shown.

I'm a democrat because I believe corporations are inherently evil and need to be heavily regulated, I believe more social programs and support (even at the cost of more taxation) increases the overall quality of life, I'm not homophobic, I'm not Christian, I'm not a nationalist so I believe in spreading the fortune we enjoy as a nation as much as possible so I'm not against immigration, I think we need to stop allowing the rich to buy elections and not to mention end the disparity between the classes where the richest 1% make as much as the bottom 90%, I think the single most important thing we need to do as a species is curb our pillage and pollution of the environment through rampant and careless consumerism and make living on this planet sustainable again, I think guns are despicable tools of violence and statistically they're known to cause more harm than good, and the idea that the way to solve the problem with guns in society is with more guns is just fucktarded and that would be a scary place to live in, but probably a Texan's wet dream.

(Some) people seem to think it's wrong to be politically polarized and neutrality or centrism is somehow superior or maybe unbiased, because it doesn't buy any one side whole-sale, but I tend to think that in any issue one side is likely more right than another (take Creationism vs. Evolution for example), and the only issue I've ever not been on the side of the democrats with was abortion, because it's clearly murder (a child doesn't magically become a living being the moment in exits the womb, it's the same being it was a second before, and it's impossible to say exactly where in the process of gestation to draw the line). And even that issue I'm mostly indifferent about nowadays, because human life is mostly suffering so if you're aborted you're probably lucky. Especially if you'd have been born into the kind of conditions in which your mother would have aborted you had she had the choice.

As for what changed my mind from being a republican to being a democrat, I don't remember.

Edit:
One other thing I remember totally reversing my opinion on was whether quantum computers could ever actually work. I was *sure* for some reason that the idea that they could work was simply an artifact of the way scientists had come to think of quantum physics, but was not really ultimately practical; that is, that they wouldn't perform any amazingly fast computations even if they were built to an ideal standard. But somehow I eventually turned around on that (thankfully even before they'd demonstrated quantum supremacy). It probably sounds like a trivial thing, but changing my mind about something is not something I often do, since I'm usually right the first time. 🤣 (see Kiwi - Is it ever possible to discover the TRUTH about everything?)