[WarMachine]

On the Alderson Drive:

Think of space as a thin rubber sheet, stretched very taught (but not too much). Now, drop a few stones onto the sheet: the the stones are solar systems, and the dimples they form are the system's gravity well.

Note that some stars are too far away to connect to any others. You can't go to these stars, except via a sublight slog.

Where two stones are relatively close together, a sort of "trench" appears between the two; this is the "tramline". You sail up to the point in the system where the tramline exists, and activate your Drive -- POOF! you appear on the other side. Technically, the Jump takes no time at all.....However.

Once you arrive in your destination system, unless you are going to hop back through to your starting system, you now have to slog through real-space to get to the next Alderson Point.

Everything in CBSG works for this model of FTL drive, and in many ways, demands it.