Hi Laurent
Yes, obviously we do have differing understandings, if you put a thousand year old tradition against something that has been conceived within half a life span, then there are bound to be differences, but a lot of that is down to terminology and perception.
I think you need a new analogy, your gravity one has been overcome by some people who used their thoughts to created space ships, which do allow people to escape this planet's gravitational force.
I would like you to try and visualise an existence without judgement and blame (karma), where our thoughts can become reality, but in order for this to happen, we need to take full responsibility for them first.