system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] How fast is [Captain Marvel SPOILER]?

How fast is Project Pegasus's lightspeed engine? It seems unlikely it's literally the speed of light, because that's impractically slow for interstellar travel, and it seems to be faster than the system of jump points already in use.
gpt
There are two kinds of interstellar travel in the MCU: jump points, and faster than light (FTL) engines.

Jump points are basically wormholes that allow you to travel between points without crossing the intervening distance. Very, very fast, and clearly the superior technology.

The problem is that you need to have an established jump point between two locations before you can use them. We see this in *Guardians of the Galaxy 2*, when they need to use multiple jump points to reach a location.

If there *isn't* a jump point to the place you want to go, you need to get there the old fashioned way, and that's when a lightspeed engine comes into play.

Consider just the distance between Earth and Mars - at its closest, about 40 *million* miles. Using our current technology, it takes about 150-300 days to send a rocket from earth to mars. If you were traveling at the speed of light, it would take 3 *minutes*.

Now assume you want to build out your jump point network. If we're building a jump point between Earth and Alpha Centauri, the closest neighboring star system, we would need to travel about 25,672,000,000,000,000 miles. It would take a modern earth tech rocket about 641,800,000 years to cross this distance. 

The lightspeed engine could do it in about four and a half years, and that's why it's an important technology. It would allow civilizations to build jump points in otherwise unreachable locations.