Son maçı 2 ay önce yapmışım ve o zaman niyetim her gün en az bir kitap maçı yapmaktı. Bu arada 2 ev taşındı, çocuklar 3 defa birer hafta benimle kaldı ve aralarda turnuvadaki iki kitabı herkesin yaptığı şekilde okudum. Bu arada turnuva da her gün aklımdaydı ve ara ara 2. turnuva için rastgele kitap topluyordumama sanırım bu turnuvaların ilk ve ikinci turlarını twitter üzerinden yapmak daha iyi olacak. Hatta kazananı belirlemek için anket de yapabilirim.

Bu maçta bir tarafta Sandman çizgi romanının 2. fasikülü var, diğer tarafta Richard Koch'un The 80-20 Principle kitabı. 15 dakika sürede Sandman'i bitirince diğeri otomatik olarak üst tura yükselmiş oldu ama onu da okudum.

The Sandman - Number 2 - February 1989

Sandman yazarlığını Neil Gaiman'ın yaptığı Ocak 89'dan Mart 96'ya kadar çıkmış bir çizgi roman. Hikayeyi anlatmayayım ama güzel görünüyor. Hikayenin başka adaptasyonları da varmış. Netflix de bir dizi haline getiriyor.

Buraya sadece bir ekran görüntüsü bırakayım.

The 80-20 Principle

Bu kitapta Pareto Prensibi adıyla bilinen konu anlatılıyor. İlk defa 19. yüzyılın sonunda İngiltere'de arazilerin %80'i insanların %20'sine aittir diye gözlenmiş. Sonra Zipf dağılımı / Güç yasası adıyla yeniden keşfedilmiş ve farklı alanlarda önemlilik, meşguliyet, kar veya verimlilik değerlendirmeleri için kullanılan bir prensip. Bir işletmenin karının %80'i, müşterilerinin %20'sinden gelir diyor mesela.

The reason that the 80/20 Principle is so valuable is that it is counterintuitive. We tend to expect that all causes will have roughly the same significance. That all customers are equally valuable. That every bit of business, every product and every dollar of sales revenue is as good as another. That all employees in a particular category have roughly equivalent value. That each day or week or year we spend has the same significance. That all our friends have roughly equal value to us. That all enquiries or phone calls should be treated in the same way. That one university is as good as another. That all problems have a large number of causes, so that it is not worth isolating a few key causes. That all opportunities are of roughly equal value, so that we treat them all equally.

In 1963, IBM discovered that about 80 per cent of a computer’s time is spent executing about 20 per cent of the operating code. The company immediately rewrote its operating software to make the most used 20 per cent very accessible and user friendly, thus making IBM computers more efficient and faster than competitors’ machines for the majority of applications.

He happened to be looking at patterns of wealth and income in nineteenth-century England. He found that most income and wealth went to a minority of the people in his samples. Perhaps there was nothing very surprising in this. But he also discovered two other facts that he thought highly significant. One was that there was a consistent mathematical relationship between the proportion of people (as a percentage of the total relevant population) and the amount of income or wealth that this group enjoyed. 4 To simplify, if 20 per cent of the population enjoyed 80 per cent of the wealth, 5 then you could reliably predict that 10 per cent would have, say, 65 per cent of the wealth, and 5 per cent would have 50 per cent. The key point is not the percentages, but the fact that the distribution of wealth across the population was predictably unbalanced.He happened to be looking at patterns of wealth and income in nineteenth-century England. He found that most income and wealth went to a minority of the people in his samples. Perhaps there was nothing very surprising in this. But he also discovered two other facts that he thought highly significant. One was that there was a consistent mathematical relationship between the proportion of people (as a percentage of the total relevant population) and the amount of income or wealth that this group enjoyed. 4 To simplify, if 20 per cent of the population enjoyed 80 per cent of the wealth, 5 then you could reliably predict that 10 per cent would have, say, 65 per cent of the wealth, and 5 per cent would have 50 per cent. The key point is not the percentages, but the fact that the distribution of wealth across the population was predictably unbalanced.

The pattern underlying the 80/20 Principle was discovered in 1897, exactly 100 years ago, by Italian economist Vilfredo Pareto (1848–1923). His discovery has since been called many names, including the Pareto Principle, the Pareto Law, the 80/20 Rule, the Principle of Least Effort and the Principle of Imbalance; throughout this book we will call it the 80/20 Principle.