Malcolm Gladwell 1: Choice, happiness and spaghetti sauce

TED 2004
Malcolm Gladwell 1: Choice, happiness and spaghetti sauce　(transcript)
Summary
For me, in this TED Talk, the most important sentence is “people don't know what they want!”.
People choose one thing from being there what they like and they start to compare things that are existing there now or they knew before. They can't choose anything that they never see.
It shows us that we can find what people want from a new thing. If there is a new group but it's more detail, even if they never see before, they can choose one from it.
Then, when you can find something that fits you more, it will make you happy.
The speaker tells us that this is the movement from the search for universals to the understanding of variability.
This is the life lesson that in embracing the diversity of human beings, we will find a surer way to true happiness.
Words in this story
variability / temporality, changeability, inconstancyembracing / hold (someone) closely in one's arms, especially as a sign of affection. accept or support (a belief, theory, or change) willingly and enthusiastically.