In media, there are sometimes stories where a person is cloned/duplicated (usually with identical memories) and the clone is murderous towards the original. Usually it’s something like “I knew there could be only one of us, and you would do the same”. Sometimes, they’re able to work things out and can share a single public identity, or duplication gives one copy a chance to do go off and live a new life that they always wanted.
How would you and your duplicate get along? Assume you are living like you do today, in a society where duplication is unheard of and has no legal precedent.
Do we have the same personality? Because I don’t see why it would escalate to murder. I don’t like violence.
I think most likely is we’d take turns going to work, and one of us would always get to stay home and procrastinate on chores. For some people that probably wouldn’t work as the duplicate would point out they have no obligation to their original, but I have a million siblings so an obsession with fairness has been hard-coded into my brain. We would work the exact same amount of hours and split all our sweets perfectly evenly.
I think the big downside is that I’d probably have to stop going to the gym. Alternating days would effectively halve my progress, and I’m not buying twice as much protein power.