The Spider’s Thread Background I recalled one story “The Spider’s Thread” by Ryūnosuke Akutagawa. https://en.wikipedia.org/wiki/The_Spider's_Thread This story tells us about to save only his/herself is bad things. My idea This story can apply everything in our minds. Developed countries have/had tried to save only own countries. Developed countries provided fake help to developing countries for maintaining advanced position. In 21st century, the way is no use. Now, Global South appears.
I think that using computer mouse with left hand is better for working people. Because many people use ten keys with right hand for Excel, so using mouse with left hand is better. The speed that I use mouse with left hand is slower than right hand, but total speed of works is faster. So I recommend left-hand-mouse, and it takes about 2 weeks for practice.