Can a calculation overrule a witness, and can science define worship when the Prophet ﷺ tied Ramadan and Eid to sighting and testimony?

This discussion confronts the clash between astronomical models, prophetic guidance, witness credibility, and the unity of the Ummah—while directly answering the audience’s pressing questions:

• How can the moon be seen if calculations say it cannot?
• What makes a witness credible today?
• Should global moon sighting always be followed?
• What happens if Muslims fast on Eid by mistake?
• Who carries responsibility when the ruling is wrong?

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