Barry Allen may be the Fastest Man Alive in the Arrowverse, but how powerful has The Flash truly been from season to season? Despite some inconsistencies from episode to episode, Barry Allen has generally been shown to be boosting his top speed, slowly but surely. As of The Flash season 8, Barry has been confirmed to be fast enough to evacuate two speeding trains on a collision course with one another in less than 12 seconds, after sprinting 50 miles.
One important factor to keep in mind when
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