Floats with high values are truncated with ellipses, which take away three places of precision from the number. Negative numbers also lose one more due to the minus sign. This makes it impossible to tell if this number is -10, -100, -1000, etc.

The default built-in parameters Velocity[X,Y,Z], AngularY, VelocityMagnitude, and ScaleFactor[Inverse] and EyeHeightAsMeters are affected by this.