The theory of dark matter would come in handy here,ofcourse it is still a theory but there is full on research on it for years and it would be the missing force of nature that connects everything with mass.

Vacuum should be unlogical to use cause nothingness should not be able to be perceived.

Interesting.

Perhaps one day we'll understand how gravity (waves) work and figure out a way to generate them. Make the whole ship 'fall' to where you want it to go, or a whole planet or star would be a good way to travel.

But mechanical objects are not the only things to have a frequency,objects in space for example our sun also has it so if that same behaviour can be copied then it might have possible interesting effects on objects in space IF the theory of dark matter proves valid(and that would be a medium like earths air).

But again too much research needed to make this option valid but still interesting to think about .

I wonder, since the best way to travel is to take a whole solar system along, whether hyper velocity stars could be a suggestion of intelligence meddling with things.
https://www.space.com/28737-fastest-star-galaxy-strange-origin.html
Reading that, finding such a binary system and eliminating its gravitational tether is kind of a brilliant way to travel outside the galaxy. Hitch a ride on a star.

If dark matter is a possibility then the suns helioseismology could go beyond the atmosphere and connect through it.

This whole thread reminds me of the portrayal of Sokrates in Assassin's Creed Odyssey.

Then you would need to move that magnet behind the ship to pull that off. Otherwise, if just doing it by one initial push, it would need so massive that the ship would simply break apart from the force.

Same reason why we can't just build a giant gun and shoot satellites into orbit; in fact the acceleration from that would be far gentler than being pushed by a magnet, having all the cannon's length to accelerate instead if an almost instantaneous push. The Space gun had been tried btw, but was deemed too impractical (it needed a 16 inches/41cm capital ship gun extended to a whooping 100 caliber length, meaning a 41m long barrel, just to give a shell suborbital flight - and still only reached on quarter of escape velocity) and thus the project was canned. Irak under Saddam tried it years later too, but that got destroyed in Desert Storm.

So the only practical way is to pull the ship along a magnetic rail, essentially turning the whole thing into a gigantic, curved Railgun or a Mass Driver. Would be pretty effective for launches from the Moon or other low gravity objects, but less so from earth as the rail would be unpractically large and high just to achieve LEO.

Indeed, currently it does not appear it does but its not a solid conclusion to say no sound energy could be transferred onto it and theres so little known of its existance

It stays a broken/vague theory atm the moment yes but that how a lot of things have started ;)

If extraterrestrial intelligent life exist and if they can travel between the stars; why would they talk to us earthlings? We don't stop to have a conversation with a caterpillar. I'm just sayin, the reason we haven't communicated with aliens yet is because we're not smart enough and civilized yet.

While not having any intelligent extraterrestrial Lifeforms is mathematically improbable, such perfectly livable planets like Earth are still pretty rare.

Also, wouldn't you in their position be curious to know what we had to offer, even if we where millennia behind in development?