Truth - or more precisely an accurate understanding of reality. - Principles (by Ray Dalio)

The depth of truth is the level of precession and accuracy with which we can describe reality.

As example:

  1. Objects fall due to gravity
  2. Objects fall at the same rate in absence of air resistance.
  3. Objects will travel a following distance d=(1/2)gt^2 in meters.
    1. where g is about 9.8m/s on earth in vacuum.
    2. t is time of the fall in seconds.

The more precise truth that we have acquired the better our Map of Reality is and the better chance we have at predicting the future.