27 March

Two messages. One, from the late James Lovelock, scientific genius, who helped NASA determine a way to detect life on other planets, and then used the ideas and technologies he developed to revolutionise climate science. “Enjoy life while you can.” He said this in 2008. Our time is nearly up, on his timetable. The other is from Saul Griffith, Australian engineer. Another genius, who knows the only way we might escape with our lives.