Quantum time travel doesn’t follow Back to the Future rules

Time travel movies have different rules about what happens when you start messing around with the timeline. If you’ve ever wondered which ones make the most sense, we may now have an answer. According to experiments using a quantum time travel simulato… Continue reading Quantum time travel doesn’t follow Back to the Future rules

Is it safe to assume that my computer’s clock will always be synced with actual time within the second or a few seconds at the worst?

Years ago, I was running a service where the moderators were able to do various actions with massive privacy implications if the accounts or contributions were less than a short period of time. I did this by checking the timestamp against … Continue reading Is it safe to assume that my computer’s clock will always be synced with actual time within the second or a few seconds at the worst?