Pi is the total ratio of base plank level building blocks in the entire universe, in relation to a single building block.
All measurements that we have ever taken, and will take, are simply ratios of quantities of these base building blocks in relation to a single one, and in relationship to the total quantity.
Science britches.
https://youtu.be/_974ZusIvhk?si=0RdlMAD2Oevno0VG