Although saying that, a border less world would be a totally different world. It would change economics, politics and society as we know it. We as humans have, for centuries, lived within boundaries. To have that thing wiped out would mean massive destabilization of a lot of things. Its always going to remain a pipe dream. Changing world order is not something a group of people can work out. And it would be a governance nightmare, if it ever were to become a reality.
Relaxing borders is definitely possible but that would take a serious amount of goodwill and honesty from world leaders, which is easier said than done. Every country has its agenda and self-centered policies and every country would safeguard its interests first before even thinking about anyone else. A border less world is never going to happen, although the idealists in us will keep dreaming of it. ...