Raising questions about the supposedly intuitive, universal Euclidean geometry also leads me to wonder about the scientific presumption that time flows forward, uniformly and independent of observers. . . . every person has their own internal clock, and our cultural contexts around the counting of time vary. The prevailing Western wisdom is that we individually and collectively typically experience time as a one-dimensional phenomenon that always moves forward. Yet the Maya had a concept of cyclical time, and this shouldn't be so counterintuitive for someone like me. I experience menstrual cycles that are roughly the length of a lunar month. As anyone who experiences menstrual cycles will know, they are rarely identical either; as we get older, they change. When my cycle starts, it usually feels like time has rebooted, right back to the beginning all over again. . . . Which sense of time is the correct one? The one that marches forward and never repeats, which seems to be organized around the universal guarantee of decay, or the one that centers and recognizes repetition?

Some might argue that there is human time the social phenomenon and then there is absolute time, the physical phenomenon measured by clocks. The essential point I hope you will take away here is that maybe intuition about space and time isn't universal and that it has cultural and experiential context.