Is it really necessary to save to some molecular accuracy?

[jidanni]

https://www.openstreetmap.org/user/jidanni/traces/11773992 :

Filename:	2025_03_07_14_50_08.gpx (download)
Uploaded:	7 March 2025 at 11:42
Points:	26
Start coordinate:	24.18696166666667; 120.86763833333335 (map / edit)

Is it really necessary to save to some molecular accuracy? Nanometer here.