Possible Clues:

• Equally distant
• To the same extent
• Equidistant
• To such an extent
• Up to the point that
• "___ as the eye can see"
• '___ as I can tell ...'
• ___ as the eye can see
• ''I trust him about ___ ...'' (start of a skeptic's phrase)
• ''I trust him about ___ ...'' (start of skeptical phrase)