May one rely on pacing (counting footsteps) rather than a rope to measure the Shabbos techum?
Synopsis
The Kalbo (citing R' Meir) holds that pacing is unreliable as a primary measurement method — one should not walk exactly 2,000 cubits by pacing and rely on it. However, if one does not intend to count all 2,000 fully, pacing may be relied upon even l'chatchila.
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Discussion
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