Percentage Doesn't Matter Quotes

One mistake people make is not noticing that they’re chasing a small percentage difference that doesn’t matter. Another common mistake is mistaking linear changes in a number for importance, when that change is a small percentage. What really is the difference between being able to type 115 and 119 words per minutes?

We’ve made health too complicated with our extensive lists of foods to avoid, complex percentages of fats-to-protein-to-carb ratios, elimination diets, calorie counting, even weighing our food—and despite all these rules, we’re not getting any better. It just doesn’t need to be this complicated. Diversity of plants. That’s it. That’s all you have to remember. Done. No more annoying food lists. If you follow this one rule, it will lead you to better health. And it will always be the truth no matter what happens: No matter what changes on this planet or in our lifestyles, this core tenet of better health will stay the same.

Other fintechs followed similar trajectories, growing slowly until an economy of scale led them to grow, very suddenly, into ubiquity. Because fintechs mostly focus on smaller dollar amounts than the big banks, scale matters. A wealth manager who only deals with high-net-worth individuals may consider everyone else “lobby trash,” but as wealth consolidates among fewer and fewer people, the wealth manager’s potential client base keeps shrinking. Meanwhile, the fintechs have earned the loyalty of all the “lobby trash.” When three hundred or three thousand individuals withdraw their savings from their bank and move their money into Betterment or Acorns or Chime, the amount is an insignificant percentage of a bank’s holdings; the bank doesn’t notice or especially care.

Figure 2.2 Number of connections over 25 years across brain areas. This process — neural exuberance followed by pruning of connections — makes the human brain highly adaptable to any environment. Is the infant born in an urban or an agricultural society? Is it the year 2012 or 1012? It doesn’t really matter. The brain of a child born in New York City or in Nome, Alaska, is similar at birth. During the next two decades of life, the process of neural exuberance followed by pruning sculpts a brain that can meet the demands, and thrive in its environment. Brain differences at the “tails” of the distribution As with any natural process there is a range of functioning, with most individuals in the middle and a small percentage of individuals being far above and far below the mean. While the general pattern of increasing and decreasing brain connections is seen in all children, important differences are reported in children whose abilities are above or below those of the average population. To investigate children above the normal range, Shaw used Magnetic Resonance Imaging (MRI) to follow brain structure in 307 children over 17 years. Children with average IQs reached a peak of cortical thickness (and therefore number of neural connections) around age 10, and then pruning began and continued to age 18. Children with above-average IQs had a different pattern: a brief pruning period around age 7 followed by increasing connections again to age 13. Then pruning ensued more vigorously and finished around age 18. There were also differences in brain structure. At age 18, those with above-average IQs had higher levels of neural connections in the frontal areas, which are responsible for short-term memory, attention, sense of self, planning, and decision-making — the higher brain functions. At the other end of the spectrum, individuals diagnosed with schizophrenia, compared to normal children, lose 3% more connections each year from age 10 to 18. Symptoms of schizophrenia emerge in the late teens, when the cortical layer becomes too thin to support coherent functioning. A thinner cortical layer as a young adult — about 20% less than the average — could account for the fragmented mental world of people diagnosed with schizophrenia. Who is in control? Neural exuberance — increasing and decreasing connections — is genetically controlled, but the child’s experiences affect which connections are pruned and which remain. Circuits that a child uses are strengthened. So a youngster who learns to play the piano or to speak Italian is setting up brain circuits that support those activities — she will find it easier to learn another instrument or language. ​Warning to parents: This doesn’t mean you should inundate your toddler with Italian, violin, martial arts, and tennis lessons. Young children learn best when following their natural tendencies and curiosity. Children learn through play. Undue stress and pressure inhibits the brain’s natural ability to learn.