Wael Ghonim : Let's design social media that drives real change

Let's design social media that drives real change
Wael Ghonim • TEDGlobal>Geneva • December 2015
Summary 

The story was told about six years ago. The speaker has already said that the Arab Spring revealed social media’s greatest potential, but it also exposed its greatest shortcomings. 

A polarization is primarily driven by our human behavior, however, social media shapes this behavior and magnifies its impact. 

Rumor is spreading among more people quickly, people can easily stop to mute and block a lot, they must forget that people behind the screen. 

It becomes really hard to change our opinions even if new evidence arises. In our social media, could people truly discuss and talk with each other? Does it lead to solving something? 

The speaker, in fact, stood on the TED stage in 2011, and said, “if you want to liberate society, all you need is the Internet.”

In 2016, the speaker in this TED told us if we want to liberate society, we first need to liberate the Internet. 

In 2021, we now must use the Internet liberally too much without having civility and believe that the polarization in the world must be solved by using the Internet. 

The speaker's TED stage in 2011

Stefan Al : Could we build a wooden skyscraper?

Could we build a wooden skyscraper?
Stefan Al • TED-Ed • July 2021
Summary

Mjøstårnet is the world's tallest wooden building made almost entirely from the trees of neighboring forests in the Norwegian countryside. It　was built in 2019, it started with the invention of glue-laminated timber called glulam, and engineers developed cross-laminated timber called  CLT to battle powerful winds.

In fact, the timber can be shaped quickly using computer directed cutting machines, 

engineered wood can be prefabricated in a factory, and

it’s biodegradable materials thus less waste.

By earthquake and fire, cracked wood panels can be easily replaced, and the CLT gives enough time to evacuate from fires. 

The timber is a renewable resource, and 

it is easier to heat and cool buildings with less energy waste.

It couldn’t be told that CLT is not strong enough to support a 40-story building and requires vastly more lumber than traditional wooden construction, though, even if only buildings under 30 stories were built from wood, it would reduce the carbon footprint of those structures by more than 25%.

We have to know about technological advancement to protect our earth. 

Amanda Crowell : 3 reasons you aren’t doing what you say you will do

 

3 reasons you aren’t doing what you say you will do | Amanda Crowell | TEDxHarrisburg (transcripts)
Summary 

We always say that this week, we are going to go to the gym or have English classes three times, though, it’s difficult for us to start doing it. 

The speaker discovered the reason that there are three powerful mindset blocks that are keeping you locked in a cycle of defensive failure. 

YOU think that somewhere in your heart, you can’t do it. 

You think that Your IDENTITY must not do it. 

SECRETLY, you don’t want to do it. 

Ironically, those defensive failures have protected you from real failure, thus you can't start doing what you want to do, so you have to change your mind to productive failure from defensive failure.

The speaker, it’s a funny and great story, just wanted to be a mother who can chase a child. She did a triathlon. She only got her head clear, and she began to take steps. If you will do the same, you’re doing those two things, nothing can stop you.