system
Given the following post, respond as if you're commenting on Reddit:
human
Are there any "solved" topics in philosophy?

Okay. So, first, folks do forgive me if my post contains erroneous misassumptions regarding philosophy. I don't know much about it, but my (possibly wrong) impression of the field is that it's very, well, diverse. Lots of different viewpoints regarding different problems and questions - so not really "objectively" definable in, say, the way science can prove the speed of light is equivalent to 299 792 458 meters/second, or that humans generally take nine months to give birth. 

Are there any philosophical topics that were once the rage of the party - debated fiercely, to the death, perhaps - that are now settled, solved questions. Of course, I suppose that calls into question whether you can "solve" a topic in any concrete sense.

 To define it more simply, so, if we assume we can't "solve" something - say, what about an supermajority-type agreed consensus on a topic that was once, say, fiercly split or contested? (I suppose, as much as there can be an agreed consensus in philosophy...)
gpt
A pretty endless list of questions in Political Philosophy no longer have any defenders on one side of the question. Should we have an absolute monarchy, should we practise the institution of slavery, should women have the same rights as men, should our society be dominated by aristocrats etc. etc.