Every time a bit of information is erased, we know it doesn't disappear. It goes out into the environment. It may be horribly scrambled and confused, but it never really gets lost. It's just converted into a different form. Leonard Susskind biteconfuseconvert share on social
You are a victim of your own neural architecture which doesn't permit you to imagine anything outside of three dimensions. Even two dimensions. People know they can't visualise four or five dimensions, but they think they can close their eyes and see two dimensions. But they can't. Leonard Susskind architectureclosedimension share on social
Is the universe 'elegant,' as Brian Greene tells us? Not as far as I can tell, not the usual laws of particle physics, anyway. I think I might find the universal principles of String Theory most elegant - if I only knew what they were. Leonard Susskind brianelegantfind share on social
Einstein, in the special theory of relativity, proved that different observers, in different states of motion, see different realities. Leonard Susskind einsteinmotionobserver Change image and share on social
At 5 years old, I saw 'Abbott and Costello Meet Frankenstein,' and I was so scared when Costello sat himself down in the lap of the monster, not realizing where he was. My friends teased me. They were older, 8 years old. And my goal was to become a mad scientist and get back at them. And here I am, mad as hell! Leonard Susskind abbottbackcostello share on social
Eventually, when the universe expands enough, all that will be left is the dark energy. Leonard Susskind darkenergyeventually Change image and share on social
Life is fragile: it thrives only in a narrow range of temperatures between freezing and boiling. How lucky that our planet is just the right distance from the sun: a little farther, and the death of the perpetual Antarctic winter - or worse - would prevail; a little closer, and the surface would truly fry anything that touched it. Leonard Susskind antarcticbadlyboil share on social
Why is there space rather than no space? Why is space three-dimensional? Why is space big? We have a lot of room to move around in. How come it's not tiny? We have no consensus about these things. We're still exploring them. Leonard Susskind bigconsensusdimensional share on social
I was from a poor Jewish family in the South Bronx. My father was a plumber, but when I was 16, he got sick and I had to take over. Being a plumber in the South Bronx wasn't fun. Leonard Susskind bronxfamilyfather Change image and share on social
I did not come from an academic background. My father was a smart man, but he had a fifth-grade education. He and all his friends were plumbers. They were all born around 1905 in great poverty in New York City and had to go to work when they were 12 or 13 years old. Leonard Susskind academicbackgroundbear share on social