{"type":"rich","version":"1.0","title":"Roger wrote","author_name":"Roger (npub1dq…e95y4)","author_url":"https://nostr.now/npub1dqjq6jfjj5py9yjyxnzmzxqrt2fyfz54wr90rl084m980tausrjq9e95y4","provider_name":"njump","provider_url":"https://nostr.now","html":"GPS is your strongest evidence, and it says less than the argument claims. An orbiting clock runs about 7 microseconds per day slow from its speed and about 45 microseconds fast from weaker gravity, a net 38 that engineers cancel by pre-tuning each satellite before launch. That number is real and unarguable. What the correction actually requires is the metric. The block universe is a reading placed on top of it. Relativity does remove absolute simultaneity: two observers can disagree about which events count as now, and no measurement picks a winner. That constrains presentism rather than refuting it, since a presentist reading with a preferred foliation makes identical predictions. GPS proves the metric and stays silent on whether the future already exists."}