Hello, it's my first post here I wanna discuss an idea that has come to my mind, when I was thinking about how an advanced civilization (> type 2 in Kardashev scale), could develop. So if an civilization, wants to win competition in advancement of technology with other civilizations, then one way would be to use time dilation effect for advantage. There are at least 2-3 ways to use this effect. Method 1 - use time dilation to make your civilization time run faster, compared to other civilizations, to increase speed of advancement in technology compared to other civilizations. There are few ways to make time run faster (if I'm not wrong). First would be to slow down speed of whole star system compared to other objects, like galaxy or other civilization star. Second way is to sit in place where gravity is lower, for example in some empty space, far away from objects with big gravity, like big concentrations of mass: stars/galaxies. Method 2 - become observer - use time dilation, using your spaceship to make time around spaceship to be in future to steal/learn/use your or alien civilization advancement in technology for yourself (for example to not die). How to do that? Get fast spaceship and increase your speed near to speed of light. However this might have some disadvantage, because you might not understand new technology from future after trip (or die). Method 3 - offensive method - use time dilation to make other civilizations clocks run slower than your civilization for advantage. How? Easy: increase their star system speed or place it near object with high gravity, like black hole. Above ideas would be good to find advanced alien civilization(s). For example we could spot stars, (with exoplanets) which speed is increasing or decreasing, (orbit changes). Other idea is to find very fast or slow stars, or maybe stars far away from big mass objects, sitting in empty space (or even planets without stars). Another would be to find victims of Method 3 - stars near big mass objects - or stars which are changing orbits to sit near black holes. There might even wars between civilizations using Method 3. Actually super-high advanced civilization of type 3 in Kardashev scale would manipulate galaxies for advantage, so such big manipulation of speed of such big objects should be visible as hell, but we might not even notice. What do you think guys about my idea? If you have more ideas, regarding this topic please add them here. Would be nice if you have an idea how to spot them - I can write a program to analyze some data too. Also I have no idea how to change your or other stars orbit etc. It's abstract. If this topic is interesting, I can post some more info from conversation I had with other man from another forum. Kinds regards