Wasn't it more that trying things in [the continent of] America seemed more likely to yield success than staying with what they had where failure was relatively

Wasn't it more that trying things in [the continent of] America seemed more likely to yield success than staying with what they had where failure was relatively certain. Like religious persecution at home was certain for the Pilgrim Fathers, but in all likelihood they could form colonies where they could freely practice their religion by risking it in North America. For others it was abject poverty at home, or try carving out a piece of frontier. Seems like colonising Mars is the other way around, we stand more chance of fulfilment on Earth and failure going to Mars? Some of us have an explorational spirit, a desire to be pioneers at all costs - isn't that why we want to go? Maybe it's toxoplasmosis.