The discoveries in quantum mechanics and many other areas made by physicists last century led to reliable, fast electrical switches. Because switches can be used to automate calculations, this created a feedback loop where faster calculations allowed faster calculators to be produced: so called "integrated circuits". Integrated circuits have obviously profoundly transformed our lives by allowing us to produce electronic devices. Each one, on a few square millimetres, is more complex than a street map of the world - nevertheless they are mass produced in factories.
The last 50 years there has been unprecedented and increasing change, fuelled by scientific development. This blog attempts to identify and examine the most significant key changes. It invites readers to put forward their opinions on these changes and suggest others.