Traveling too fast is not good

It is amazing to see that until very recently the human being was not able to move relatively quickly through the world. Before that was feasible, in fact, the messages did, which was like transporting a part of oneself without having to rumble: long before the telegraph or the carrier pigeons, for example, optical telegraphs consisting of watchtowers with fires were used, style of The Lord of the rings: You can read more about it in Touring the Greek fire in the style of 'The Lord of the Rings' in the middle of the Trojan War.

In addition, traveling fast was not only impossible but was believed to be harmful to health: in the past, moving fast was the equivalent of traveling to the moon.

For example, in August 1784, John palmer created a fast carriage service for express mail between Bath and London (a distance of about 160 km), which reduced the travel time from 38 to 16 hours (A time when today, any of us, we can go around the world). However, at that time, a doctor would publish in Bath argus: "Regular travel at such a prodigious speed will surely cause death by stroke."

A century later, the same fears adduced at higher speeds, with the advent of the railroad. For example, Dionysus Lardner, professor of natural philosophy and astronomy at the University College of London, published in 1830: "Traveling by rail at high speed is not possible because passengers, unable to breathe, would die of suffocation."

A century later, the same fears were repeated again with higher speeds. John P. Lockhart-Mummery, member of the Royal College of Surgeons, in his 1936 book After us, he warned: "The acceleration that will result from the use of rockets will inevitably damage the brain without the possibility of healing."

Your vital radius

During the Middle Ages, for example, most people lived, worked, he married and died without ever leaving more than 30 kilometers from his birthplace, as he explains Matt Ridley in his book The rational optimist.

But the best way to illustrate changes in human mobility is perhaps a study by the epidemiologist David Bradley (which also appears in Ridley's work), who documented the travel patterns of his great-grandfather, his grandfather, his father and his own during the 100 years before the 1990s. The result was as follows:

Great grandfather: never left a square of 40 by 40 km.

Grandfather: a square of 400 km.

Father: traveled throughout Europe, covering a square of 4,000 km.

Bradley himself: became globetrotter, covering the 40,000 km circumference of the Earth.

To know what awaits us in the 21st century.