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“Take wrong turns. Talk to strangers. Open unmarked doors. And if you see a group of people in a field, go find out what they are doing. Do things without always knowing how they'll turn out. You're curious and smart and bored, and all you see is the choice between working hard and slacking off. There are so many adventures that you miss because you're waiting to think of a plan. To find them, look for tiny interesting choices. And remember that you are always making up the future as you go.”
― xkcd: volume 0
― xkcd: volume 0
“But I’ve never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive.”
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
“Whatever happened to our dreams? The infinite possibilities each day holds should stagger the mind. The sheer number of experiences I could have is uncountable, breathtaking, and I'm sitting here refreshing my inbox. We live trapped in loops, reliving a few days over and over, and we envision only a handful of paths laid out ahead of us. We see the same things each day, we respond the same way, we think the same thoughts, each day a slight variation on the last, every moment smoothly following the gentle curves of societal norms. We act like if we just get through today, tomorrow our dreams will come back to us. And no, I don't have all the answers. I don't know how to jolt myself into seeing what each moment could become. But I do know one thing: the solution doesn't involve watering down my every little idea and creative impulse for the sake of someday easing my fit into a mold. It doesn't involve tempering my life to better fit someone's expectations. It doesn't involve constantly holding back for fear of shaking things up. This is very important, so I want to say it as clearly as I can: FUCK. THAT. SHIT.”
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“There’s no material safety data sheet for astatine. If there were, it would just be the word “NO” scrawled over and over in charred blood.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“They say there are no stupid questions. That’s obviously wrong; I think my question about hard and soft things, for example, is pretty stupid. But it turns out that trying to thoroughly answer a stupid question can take you to some pretty interesting places.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“I got in touch with a friend of mine who works at a research reactor, and asked him what he thought would happen to someone who tried to swim in their radiation containment pool. “In our reactor?” He thought about it for a moment. “You’d die pretty quickly, before reaching the water, from gunshot wounds.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“The role of gender in society is the most complicated thing I’ve ever spent a lot of time learning about, and I’ve spent a lot of time learning about quantum mechanics.”
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“It’s not the fall that kills you, it’s the sudden stop at the end.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Your plane would fly pretty well, except it would be on fire the whole time, and then it would stop flying, and then stop being a plane.”
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
“I can't remember where I heard this, but someone once said that defending a position by citing free speech is sort of the ultimate concession; you're saying that the most compelling thing you can say for your position is that it's not literally illegal to express.”
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“Remember: I am a cartoonist. If you follow my advice on safety around nuclear materials, you probably deserve whatever happens to you.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Do not try any of this at home. The author of this book is an Internet cartoonist, not a health or safety expert. He likes it when things catch fire or explode, which means he does not have your best interests in mind. The publisher and the author disclaim responsibility for any adverse effects resulting, directly or indirectly, from information contained in this book.”
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
“The universe is probably littered with the one-planet graves of cultures which made the sensible economic decision that there's no good reason to go into space - each discovered, studied, and remembered by the ones who made the irrational decision.”
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“Space is about 100 kilometers away. That’s far away—I wouldn’t want to climb a ladder to get there—but it isn’t that far away. If you’re in Sacramento, Seattle, Canberra, Kolkata, Hyderabad, Phnom Penh, Cairo, Beijing, central Japan, central Sri Lanka, or Portland, space is closer than the sea.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Maybe civilization will collapse, we’ll all succumb to disease and famine, and the last of us will be eaten by cats. Maybe we’ll all be killed by nanobots hours after you read this sentence. There’s no way to know.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Things are rarely just crazy enough to work, but they're frequently just crazy enough to fail hilariously.”
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“A world of random soul mates would be a lonely one. Let’s hope that’s not what we live in.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“If humans escape the solar system and outlive the Sun, our descendants may someday live on one of these planets. Atoms from Times Square, cycled through the heart of the Sun, will form our new bodies. One day, either we will all be dead, or we will all be New Yorkers.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“So Yoda sounds like our best bet as an energy source. But with world electricity consumption pushing 2 terawatts, it would take a hundred million Yodas to meet our demands. All things considered, switching to Yoda power probably isn't worth the trouble — though it would definitely be green.”
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
“The explosion would be just the right size to maximize the amount of paperwork your lab would face. If the explosion were smaller, you could potentially cover it up. If it were larger, there would be no one left in the city to submit paperwork to.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Sometimes I mistake this for a universe that cares.”
― xkcd: volume 0
― xkcd: volume 0
“We don’t know what astatine looks like, because, as Lowe put it, “that stuff just doesn’t want to exist.” It’s so radioactive (with a half-life measured in hours) that any large piece of it would be quickly vaporized by its own heat. Chemists suspect that it has a black surface, but no one really knows. There’s no material safety data sheet for astatine. If there were, it would just be the word “NO” scrawled over and over in charred blood.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“I like it when things catch fire and explode, which means I do not have your best interests in mind.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“A million people can call the mountains a fiction, yet it need not trouble you as you stand atop them.”
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“A 1-watt laser is an extremely dangerous thing. It’s not just powerful enough to blind you—it’s capable of burning skin and setting things on fire. Obviously, they’re not legal for consumer purchase in the US. Just kidding! You can pick one up for $300. Just do a search for “1-watt handheld laser.” So, suppose we spend the $2 trillion to buy 1-watt green lasers for everyone. (Memo to presidential candidates: This policy would win my vote.)”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“A. Nearly everyone would die. Then things would get interesting.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“The US isn’t a perfect model of the world,”
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
― What If?: Serious Scientific Answers to Absurd Hypothetical Questions
“Think of the elements as dangerous, radioactive, short-lived Pokémon.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“If you set out a cup of warm water on Mars, it’ll try to boil, freeze, and sublimate, practically all at once. Water on Mars seems to want to be in any state except liquid.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
“Horned lizards shoot jets of blood from their eyes for distances of up to 5 feet. I don’t know why they do this because whenever I reach the phrase “shoot jets of blood from their eyes” in an article I just stop there and stare at it until I need to lie down.”
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions
― What If? 10th Anniversary Edition: Serious Scientific Answers to Absurd Hypothetical Questions






