Helix Dreams - Michael Davies

Time travel is impossible, but a team of well-funded geneticists discovers that human DNA contains a full visual and aural record of every second of our lives and this can be retrieved and displayed. Then they discover that the DNA also holds a similar record of every one of our direct ancestors and this allows us to look back in time through the eyes of previous generations. Amazing discoveries are made, some old beliefs shattered, new historical truths discovered. Massive changes start to appear in what it means to be human and all of society will change irrevocably.