Author: Atanu Dey

Joel Cohen’s book How Many People Can The Earth Support should be required reading for Indian policy makers. Here is more from the introduction:

The unprecedented growth in human numbers and in human power to alter the Earth requires, and will require, unprecedented human agility in adapting to environmental, economic and social problems, sometimes all at once. The Earth’s human population has entered and rapidly moves deeper into a poorly charted zone where limits on human population size or well-being have been anticipated and may be encountered. Slower population growth, along with many other improvements in human institutions and behaviors, would make it easier for people to retain control of their fate and to turn their attention from the numbers to the qualities of humankind.

These themes have consequences for action. Stopping a heavy truck and turning a large ocean liner both take time. Stopping population growth in noncoercive ways takes decades under the best of circumstances. Ordinary people … still have time to end population growth voluntarily and gradually by means that they find acceptable. Doing so will require the support of the best available leadership and institutions of politics, economics and technology to avoid physical, chemical and biological constraints beyond human control. Migration can ameliorate or exacerbate local problems, but at the global level, if birth rates do not fall, death rates must rise.

India’s population problem is a sort of tragedy of the commons and there is little chance that ‘ordinary people will voluntarily and gradually’ solve this problem. The incentives simply don’t exist, even if the knowledge and the understanding existed about the social disaster of excessive population, for individuals to act for the social good.

The solution to India’s population problem has to “make sense” to those who produce the children. That is, they have to have an incentive to produce the socially optimal number of children. I have worked out a simple mechanism that would solve this problem. Details at — when else — 11.

Those in charge of the Titanic disregarded the warnings. And those who were not in charge were blissfully unaware of the fact that those in charge were not fully competent.

The Titanic had sealed its own fate by the cavalier disregard to those ice warnings by their Marconi operators. Particularly the last two, from the Maseba at 7.30pm and the Californian after 11pm. Had they paid attention to them they would have seen they were heading straight into an icefield. Source

The passengers trusted that the captain was competent. The importance of that simple concept called trust can never be underestimated. Without trust, we would accomplish very little. We have to trust that those who are supposed to know, do know; that those who are supposed to do, are capable, etc. We trust that the pilot knows how to handle the craft, and the surgeon the scalpel. We trust that the policy makers know what they are doing.

We only learn of a betrayal of that trust only when it is too late. Whether it is a ship, or a ship of state, some worry whether those whom we trust are worthy of that trust.

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The Titanic was doomed due to a number of factors which were linked into a chain. If any of the links were not forged, it would have avoided that fate. The first link of that chain was the structural link. It was designed such that if a few of its forward water-tight compartments were to get flooded, it would sink.

Source

There must have been some design considerations which dictated why the bulkheads did not go all the way to the ceiling. I am only noting the structural feature which made the Titanic vulnerable to negligent behavior. Perhaps if the Titanic was designed differently, it could have survived the negligent behavior of its crew.

The lesson to me is that the ship had a structural failure that was exposed due to the incompetence of its captain.

A few years ago, my college at UC Berkeley was searching for a dean. Prof. Joel Cohen was invited to check out the College of Natural Resources. I asked him about his book How Many People Can the Earth Support? over lunch.

A few years ago, he said, a journalist had called him up saying that he was doing a piece on world population and wanted to know from Joel how many people could the earth support. Joel told the caller that he could not answer that question off the top of his head. It could take him a few days and why didn’t he call back in four or five days.

It took Joel three years to definitively answer that question and a fine job he did, in my opinion. The book was published in 1995. I quote from the introduction:

Though the future is hazy, much that is very clear can be known about the present. First, the size and speed of growth of the human population today have no precedent in all the Earth’s history before the last half of the twentieth century. Human numbers currently exceed 5.7 billion and increase by roughly an additional 90 million people per year. Second, the resources of every kind (physical, chemical and biological; technological, institutional and cultural; economic, political and behavioral) available to people are finite today both in their present capacity and in their possible speed of expansion. Today’s rapid relative and absolute increase in population stretches the productive, absorptive and recuperative capacities of the Earth as humans are now able to manage those capacities. It also stretches human capacities for technological and social invention, adaptation, and compassion.

Like in all other things, humans have a limited capacity for compassion too. When resources are severely limited, the thin veneer of civilization is easily scraped off to reveal the underlying unyielding will to survive at the expense of others.

The HMS Titanic was a giant of a ship. It was doing 21 knots that fateful night.

Now it was 9.40pm, and still the ice warnings came. At no time had Captain Smith or the senior officers ordered a cautionary reduction in speed, or had gone to the trouble of having extra lookouts posted, something which Captain Lord of the Californian had already performed before he called it a day and brought his own vessel to a halt in the ice. When you put-together the ice warnings Titanic had received that day, it revealed that there was an ice-field 80 miles long directly in her path, and only two hours away if the current speed were maintained. Surely somebody in the next couple of hours must realise that Titanic is steaming at full-speed into an ice-field which has already made other vessels to heave-to for the night?

The warning messages kept coming in. Ice ahead. John Phillips was the radio operator in the Marconi room busy at the controls of the transmitters, sending messages to Cape Race in North America.

… under the immense pressure of sending commercial traffic, and at the same time having to cope with incoming warnings and messages, he snapped, as the nearby Californian sent an ice warning to Titanic. “Shut up, shut up. I am busy. I am working Cape Race.” Phillips’ now infamous snub highlighted how the commercial traffic had priority over the warnings. Perhaps if the Marconi men had not been so busy sending messages, the Titanic would never had foundered. But all of the previous warnings didn’t stop that happening either, so a last minute aversion was unlikely.

Exponential growth can be a terrifying thing. We all know the story of the king who was foolish enough to grant a boon to one who was familiar with the concept of exponential growth. To recount, the king said, “Ask and I will grant it to you.”

The man said, “All I want is a few pennies. I want one penny on the first square of a chess board, two pennies on the second square, four pennies on the third, eight pennies on the fourth, and so on till we reach the 64th square of the chess board.”

The king, like our present day innumerate kings, was immensely relieved. Here was this idiot asking for pennies when he could have asked for a ton of gold. “Done,” said the king and asked his minister to make the arrangements.
Continue reading “Numbers”

Rearranging the deck chairs on the Titanic.

What an absolutely evocative expression. I cannot get that out of my head every time I muster up enough courage to read the newspapers. Most of those out there on the top deck are busy with something trivial while below decks the situation is dire.

It was a cold and dark night on the 14th of April in the year 1912. The dead calm seas were lit only by moonlight as the HMS Titanic made its maiden voyage from Southampton to New York across the North Atlantic.

Ice is a seasonal hazard in the unforgiving winter seas of the North Atlantic, and in the couple of days since leaving Southampton, many ships had reported ice in the exact area into which Titanic would be sailing. On the 11th April, she received 6 warnings from ships stopped in, or passing through, heavy ice, 5 more on the 12th, 3 more on the 13th, and 7 on the 14th. All of these messages would have been written down as they were intercepted, logged in the radio book, and passed on to the officers on the bridge. There was now no way that the Captain, along with the officers, would have been unaware of the huge field of ice that now lay directly in front of Titanic.    Source.

Perhaps other matters occupied the Captain’s mind, such as the need to retire with a big bang. This was his last command and perhaps he did not want the ship to be late on its maiden voyage. Perhaps the owners of the White Star shipping lines did not want to let ice interfere with their grand ship.

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Everybody knows that the boat is leaking
Everybody knows that the captain lied . . .

I don’t know if Leonard Cohen is right about that. Not everybody knows.