alt Hacker NewsSo, really fast, but not what we would consider relativistic.
That's may be in the range of speed that is most unfamiliar to us. We get speeds up to orbital velocities, in the 10 km/s range, as these are the "fast" objects we know (rockets, meteorites, ...), and then we get to significant fractions of light speed, mostly in the context of communication. But what goes at 900 km/s in our day to day life? Is it a number we see anywhere besides colliding galaxies?
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It's also cosmology, but for what it's worth, the solar system is moving at about 230km/s around the milky way so you could say every one of us is moving at such a number.
Not really,
https://en.wikipedia.org/wiki/Orders_of_magnitude_(speed)
440 km/s—"Typical speed of the stepped leader of lightning (cf. return stroke below).[31]"
445 km/s—"Max velocity of the remaining shell (mass about 0.1 mg) of an inertial confinement fusion capsule driven by the National Ignition Facility for the 'Bigfoot' capsule campaign.[32] Current fastest macroscopic human-made system."
1,000 km/s—"Typical speed of a Moreton wave across the surface of the Sun."
This thought reminds me a lot of the Tesla unit. https://en.wikipedia.org/wiki/Tesla_(unit)
It goes from 3.2 x 10^-5 to 1200 fairly gradually and then suddenly to 10^9. My partner at the time looked at this and remarked "There are some unexplored orders of magnitude" which feels like a good, dramatic phrase.