>We filtered out all spatiotemporal edges in the entity graph with an implied speed of <300 kilometers per hour or <200 kilometers distance, IIRC. This was the proxy for "was on a plane". It also implicitly provided the origin and destination.
Sounds like the bigger issue is that you're able to get "spatiotemporal" data in the first place? Otherwise it's like saying "we can figure out all stores you've been to, if we have your credit card transaction history". Sure, it's kinda creepy that you can figure out which stores I went to, but the bigger problem is that you can get the transaction data in the first place. Moreover whatever "spatiotemporal" data needed to reconstruct such flight history is probably more valuable than the flight history itself. Who cares if you know Joe flew on United 8340 when you have hour-by-hour updates on his rough location?
Sounds like the bigger issue is that you're able to get "spatiotemporal" data in the first place? Otherwise it's like saying "we can figure out all stores you've been to, if we have your credit card transaction history". Sure, it's kinda creepy that you can figure out which stores I went to, but the bigger problem is that you can get the transaction data in the first place. Moreover whatever "spatiotemporal" data needed to reconstruct such flight history is probably more valuable than the flight history itself. Who cares if you know Joe flew on United 8340 when you have hour-by-hour updates on his rough location?