Maggy

It's the power source that will be the biggest problem.We are still trying to find a cheap power source that converts easily obtainable renewable resources(therefore cheaper)that aren't toxic(who wants to be irradiated before the final destination) and gives out enough output to get up to speed so as to get somewhere within living memory.Then having got up to speed we have to make sure that we don't smear ourselves across the windscreen in a bloody pulp before we work out how to stop.Also before we go any distance away we want to be sure we can get back with whatever we discover or the whole experience will be wasted for those left back here on earth.

I'm not saying it's impossible I'm just saying we may run out of resources (renewable or non renewable) long before we get to the stage of discovering a means to reach the stars.

How wonderful if we achieve it,but we have a lot to learn and discover before that day.I think we will be a much different society to the one we now have when we do discover how to FTL,so much so that we may not WANT to go to other star systems.