Question regarding speed of light travel

I am going to do a little rambling and thinking with my fingers on the subject of light speed travel and its implications. I assume most of the questions I bring up here are already answered and hope to eventually learn those answers and understand them, but for the moment I have little more than a passing understanding of these issues...

If I were to travel to Alpha Centauri 4 light years away at the speed of light would I experience it as 4 years? How long would it be on earth? It seems like it should be 4 years on earth as if they sent a radio message to Alpha Centauri at the speed of light 4 years later they would say “ok it has reached its destination...” But in this case how would I traveling at the speed of light experience the journey? Possibly as instantaneous travel? It would make sense in that I would not perceive the ticking of the clock as the light which would carry the information to my eyes would never reach them... If I were to travel at 2x the speed of light it seems that I should experience that as taking 2 years to get to Alpha Centauri... What is the ratio of differentiation between the experience of time of the person on earth and the person traveling at light speed? No doubt this can be easily calculated with the correct set of equations.

Ok so now we hit on the interesting philosophical implication of these questions... If it is possible to calculated varying experiences of time of differing perspectives in relative motion to one another would it not be possible to establish a base perspective which could be chosen at random as long as it is agreed upon, and from this we could calculate time shifts to other perspectives to establish a universal time and simultaneity... One of the founding principles of relativity and perspectivism is the idea that there is no one correct perspective, but this gives rise to many problems of communication across equally valid perspectives. If we could built a socially constructed framework which does not blindly hold one perspective superior but rather provides a method for translation could we not solve many of these problems. Instead of looking for the non-existent ground we could collectively create our own ground upon which to build. In this way we might free ourselves from the error which has dominated philosophy, that of searching for external answers rather than creating them from within and more importantly collectively as a social and political act... There is objective truth in so far as there is collectively agreed upon universal, or near as possible to universal, subjective experience of objective reality. Where there is broad general consensus on the contents of reality we can consider that to be reality and focus our attention on the margin cases where consensus is not easily established...

See I knew this kind of rambling would eventually pay off with an interesting thought... And you thought it was pointless mental masturbation... OK that was me saying that... Though these are not thoughts I have not had before and I really should start to try to organize them and approach them in a more systematic fashion....