Survival skills
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise.
The Source (Ayreon album)
After finally escaping from Alpha, the surviving humans are injected with a drug made by The Chemist (Tommy Rogers), named "Liquid Eternity" but mostly referred to as "The Source", that will make their bodies able to live underwater and communicate by telepathy, as the world they are going to is an aquatic one; it will also drastically extend their lifespans, making them virtually immortal. They put themselves in suspended animation, as their trip will take many years ("Aquatic Race"). In their sleep, the humans dream of the beautiful world that awaits them ("The Dream Dissolves"). The former Alphans ultimately awaken as they reach Sirrah and mourn, aware that during the many years it took them to travel, their planet, together with all their loved ones, has come to an end ("Deathcry of a Race"). However, they are also filled with hope at the sight of their new world ("Into the Ocean").