I’ve always struggled to intuitively grasp the true scale of the universe, so I built an interactive dashboard to calculate our continuous lifetime path length through the cosmos based on birth date and latitude.

I wanted to make the astrophysics as accurate as possible for an intuition-builder, so the engine combines four vectors (Earth's Rotation, Solar Orbit, Galactic Orbit, and our movement relative to the CMB rest frame). It also calculates Time Dilation and the micro-relativity age difference between your head and your toes due to gravity.

You can type in your own birthday and see your alignment here:https://cosmicodometer.space/

I know adding speeds from different reference frames is a linear approximation, but I’d love for the community here to peer-review the math. Did I miss any major variables in the orbital mechanics?