Your time bubble expands as your experiments increase in scale.

Benefit: Your time bubble radius increases by 5 feet, plus 5 feet for every 3 temporal tinker levels beyond the first (to a total increase of 20 feet at 10th level).

Compression: The expansion of your bubble is evident even when it is compressed, as distortion leaks out in a small radius around you. When you compress your time bubble, the normal distortion effect—usually suppressed during compression—lingers in a 5-foot radius around you.