[stouset]

That's the thing: people are arguing that, as astonishing as the portayal seems, it still manages to give people a gross underestimation of how big these scales really are.

As portrayed, it seems like it only takes a minute or so to get to Mars at 20% of the speed of light. But really, they continue speeding up the starfield to multiples of superluminal speeds. As great as that distance seems, it's even more than an order of magnitude larger than depicted.