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human
[MassEffect] Questions about ftl.

So, i've heard some theories that you can go ftl if you can get negative mass. So, does (or can) eezo give something negative mass? Or, does it just lower the ships mass so much they you dont need infinite energy to push it to ftl? (but, if we lower it to 0.0001% of mass, still 0.0001 x infinity = infinity, so most likely negative mass) 

How about the rest of relativity, they dont seem to experience time dilation? (i know they cant use sensor when in ftl atleast, iirc?) 

How do the mass relays work? They say that it creates a corridor of mass free space between relays, and that travel is instant.

1: How does a corridor of mass free space give you instant travel time. Does exactly 0 mass = basicly infinite velocity?

2: What happens with the things that is between the relays when they fire? Does it push stuff aside, just smash them, or pick them up along the way and dump them at the end, at the exit relay. 

3: There are many relays, and you travel between major ones for long distances, and then smaller/secundary relays for local, smaller distances. How does that work? Do you drop out at a major one, go 200km to one of the connecting ones, wait for it to aim right to you last stop, and then shoot away with that? Or, are you automaticly connected, so you never exit superspeed? And, is every major relay only connected to one, or can they also aim?

I dont know man, you just have a lot of time to think when in transit like this.
gpt
That's exactly what Eezo does: it allows you to raise or lower an objects mass to amounts approaching nil or infinite on demand. Time dilation is only in effect regarding theoretical ftl travel on objects with mass. Since the mass effect removes mass from the equation, time dilation is not an issue.

The relays are "aimed" but the ship can do some minor course correction to land at several different relays. There are only a few relays that are only connected to one point in space. Objects in space are dangerous for FTL ships, fortunately most major relay lanes are clear due to design. This is why it's important to scout a newly found relay before going through it: if you don't know where it goes, or what's in between here and there, it could be extremely dangerous.