There are many questions in the world that you can get clear answers of. These answers will never change because of the environment or the class struggle. There will never be a time when the earth will stop orbiting the sun because of inflation. The class difference will never affect the answer of 2×2. The things we know as facts are exactly that and will not be influenced by anything happening around us. But there are plenty of things around us that get affected by different factors every day. Glaciers are made up of ice, but that isn’t a fact which can’t change. A lot of glaciers are melting slowly due to global warming. Which proves that a lot of things about our world are not the absolute truth and can change anytime.
There are also plenty of social concepts that change with time. Things that were acceptable a hundred years ago are not acceptable anymore simply because now we know better. A lot of laws were abolished simply because they were against a minority. There was a time when women weren’t allowed to vote or own land. But thankfully that wasn’t a fact and eventually changed when women stood up against the discriminatory rules and fought for their rights. A lot of things changed throughout the world as time passed and we learned more about the right way of living.