Top 280 Michio Kaku Quotes (2025 Update)
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201. “So the scale law rules out the familiar idea of worlds-within-worlds found in science fiction, that is, the idea that inside the atom there could be an entire universe, or that our galaxy could be an atom in a much larger universe.”

— Michio Kaku

202. “To create silicon chips, UV light is passed through a template that contains the blueprint for all the circuits on a chip. The UV light and a series of chemical reactions creates a pattern that is etched onto a silicon wafer, creating transistors on the chip.”

— Michio Kaku

203. “For the ten-dimensional universe, however, there are apparemtly millions of ways in which to curl up. To calculate which state the ten-dimensional universe prefers, we need to solve the field theory of strings using the theory of phase transitions, the most difficult problem in quantum theory.”

— Michio Kaku

204. “The mind reels when we realize that, according to this interpretation of quantum mechanics, all possible worlds coexist with us. Although wormholes might be necessary to reach such alternate worlds, these quantum realities exist in the very same room that we live in. They coexist with us wherever we go.”

— Michio Kaku

205. “I realized very early in life what my abilities and limitations were, and foreign languages was definitely one of my limitations. With strenuous effort, I just barely passed my French class at Harvard so I could graduate.”

— Michio Kaku

206. “We physicists don’t like to admit it, but some of us are closet science fiction fans. We hate to admit it because it sounds undignified. But when we were children, that’s when we got interested in science, for a lot of us.”

— Michio Kaku

207. “The problem is that while twenty-first-century physics fell accidentally into the twentieth century, twenty-first-century mathematics hasn’t been invented yet. It seems that we may have to wait for twenty-first-century mathematics before we can make any progress, or the current generation of physicists must invent twenty-first-century mathematics on their own.”

— Michio Kaku

208. “When I get bored, or get stuck on an equation, I like to go ice skating, but it makes you forget your problem. Then you can tackle the problem with a fresh new insight. Einstein liked to play the violin to relax. Every physicist likes to have a past time. Mine is ice skating.”

— Michio Kaku

209. “By the year 2020 or 2030, all this will finally culminate in personalized DNA codes. Gilbert claims, “You’ll be able to go to a drugstore and get your own DNA sequence on a CD, which you can then analyze at home on your Macintosh.”

— Michio Kaku

210. “In other words, positive matter and energy that we see in stars can warp space-time so that it perfectly describes the motion of heavenly bodies. But negative matter and energy warp space-time in bizarre ways, creating an antigravitational force that can stabilize wormholes and prevent them from collapsing and propel warp bubbles to faster-than-light velocities by compressing space-time in front of them.”

— Michio Kaku

211. “If you remove a single transistor in the digital computer’s central processor, the computer will fail.”

— Michio Kaku

212. “It is estimated that, if the ice caps of Mars were completely melted, there would be enough liquid water to fill a planetary ocean fifteen to thirty feet deep.”

— Michio Kaku

213. “Humanity is like someone whose outstretched arms are reaching for the stars but whose feet are mired in the mud.”

— Michio Kaku

214. “There was only one period of time when energy on this enormous scale was readily available, and that was at the instant of Creation. In fact, the hyperspace theory cannot be tested by our largest atom smashers because the theory is really a theory of Creation. Only at the instant of the Big Bang do we see the full power of the hyperspace theory coming into play. This raises the exciting possibility that the hyperspace theory may unlock the secret of the origin of the universe.”

— Michio Kaku

215. “If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. – CARL SAGAN.”

— Michio Kaku

216. “Scientists who have dedicated their lives to building machines that think, feel that it’s only a matter of time before some form of consciousness is captured in the laboratory.”

— Michio Kaku

217. “The poet only asks to get his head into the heavens. It is the logician who seeks to get the heavens into his head. And it is his head that splits. – G. K. Chesterson.”

— Michio Kaku

218. “Such thinking is sheer speculation, but the laws of physics allow for the possibility of opening a hole in space by concentrating enough energy at a single point, until we access the space-time foam and wormholes emerge connecting our universe to a baby universe.”

— Michio Kaku

219. “Riemann found that in four spatial dimensions, one needs a collection of ten numbers at each point to describe its properties.”

— Michio Kaku

220. “If you haven’t found something strange during the day, it hasn’t been much of a day. –JOHN WHEELER.”

— Michio Kaku

221. “During the eleven-year sunspot cycle, for example, solar flares can send enormous quantities of deadly plasma racing toward Earth. In the past, this phenomenon has forced the astronauts on the space station to seek special protection against the potentially lethal barrage of subatomic particles.”

— Michio Kaku

222. “The fruit fly has roughly 150,000 neurons in the brain.”

— Michio Kaku

223. “In my field, physics, I see that most of us are engage in physics not for the money but for the sheer joy of discovery an innovation.”

— Michio Kaku

224. “If we can somehow control the probability of certain improbable events, then anything, including faster-than-light travel, and even time travel, is possible. Reaching the distant stars in seconds is highly unlikely, but when one can control quantum probabilities at will, then even the impossible may become commonplace.”

— Michio Kaku

225. “Normally gravity would crush the throat of the wormhole, destroying the astronauts trying to reach the other side. That is one reason that faster-than-light travel through a wormhole is not possible. But the repulsive force of negative energy or negative mass could conceivably keep the throat open sufficiently long to allow astronauts a clear passage. In other words, negative mass or energy is essential for both the Alcubierre drive and the wormhole solution.”

— Michio Kaku

226. “The most ancient part of our brain is at the very back, where balance, territoriality, and instincts are processed. The brain expanded in the forward direction and developed the limbic system, the monkey brain of emotions, located in the center of the brain. This progression from the back to the front is also the way a child’s brain matures.”

— Michio Kaku

227. “To a physicist, beauty means symmetry and simplicity. If a theory is beautiful, this means it has a powerful symmetry that can explain a large body of data in the most compact, economical manner. More precisely, and equation is considered to be beautiful if it remains the same when we interchange its components among themselves.”

— Michio Kaku

228. “It would be great if we had our own personal force fields. Just imagine creating your own architecture in your room. Buildings. You wouldn’t have to spend all that time saving your money for that second house. You’d simply push a button and have as many houses as you want.”

— Michio Kaku

229. “Historically, with each new scientific discovery, a new model of the brain has emerged. One of the earliest models of the brain was the “homunculus,” a little man who lived inside the brain and made all the decisions. This picture was not very helpful, since it did not explain what was happening in the brain of the homunculus.”

— Michio Kaku

230. “In general, the larger the breeding population, the slower the rate of evolution.”

— Michio Kaku

231. “A stable wormhole is therefore a balancing act, and the key is to maintain the right mixture of positive and negative energy. You need lots of positive energy to naturally create the gateway between universes, as with a black hole. But you also need to create negative matter or energy artificially to keep the gateway open and prevent a collapse.”

— Michio Kaku

232. “My point is, no one can stop the Internet. No one can stop that march. It doesn’t mean that it’s going to be smooth, though.”

— Michio Kaku

233. “On average, animals that eat 30 percent fewer calories live 30 percent longer. This has been amply demonstrated with yeast cells, worms, insects, mice and rats, dogs and cats, and now primates. In fact, it is the only method that is universally accepted by scientists to alter the life span of all animals that have been tested so far.”

— Michio Kaku

234. “Second is N, equal to 1036, which is the strength of the electric force divided by the strength of gravity, which shows how weak gravity is.”

— Michio Kaku

235. “The next big accelerator might be the ILC in Japan, a linear collider which might be able to probe the boundaries of string theory. So we physicists have to learn how to engage the public so that taxpayers money is used to explore the nature of the universe.”

— Michio Kaku

236. “Each of the genes of the human body is spelled out explicitly in this dictionary, but what each does is still largely a mystery.”

— Michio Kaku

237. “If our scientists invent concepts like forces, it is only because they cannot visualize the invisible vibrations that fill the empty space around us. Some scientists sneer at the mention of higher dimensions because they cannot be conveniently measured in the laboratory.”

— Michio Kaku

238. “Normally communication between these universes is impossible. The atoms of our body are like flies trapped on flypaper. We can move freely about in three dimensions along our membrane universe, but we cannot leap off the universe into hyperspace, because we are glued onto our universe. But gravity, being the warping of space-time, can freely float into the space between universes.”

— Michio Kaku

239. “We recall that the warping of the bedsheet was determined by the presence of the rock. Einstein summarized this analogy by stating: The presence of matter-energy determines the curvature of the space-time surrounding it.”

— Michio Kaku

240. “Our eyes also fool us into thinking we can see depth. The retinas of our eyes are two-dimensional, but because we have two eyes separated by a few inches, the left and right brain merge these two images, giving us the false sense of a third dimension.”

— Michio Kaku

241. “In other words, a star is a nuclear furnace, burning hydrogen fuel and creating nuclear “ash” in the form of waste helium. A star is also a delicate balancing act between the force of gravity, which tends to crush the star into oblivion, and the nuclear force, which tends to blow the star apart with the force of trillions of hydrogen bombs. A star then matures and ages as it exhausts its nuclear fuel.”

— Michio Kaku

242. “Also, some dreams can incorporate events that happened a few hours earlier, just before sleep. But dreams mostly incorporate memories that are a few days old. For example, experiments have shown that if you put rose-colored glasses on a person, it takes a few days before the dreams become rose-colored as well.”

— Michio Kaku

243. “By 2020, the flat panel displays will likely come in a variety of forms. They will be miniaturized to work as wristwatch screens and may be added to eyeglasses or key chains. Eventually, they will become so cheap they will be everywhere: on the backs of airplane seats, in photo albums, in elevators, on notepads, on billboards, on the sides of buses and trains. They may one day be as common as paper.”

— Michio Kaku

244. “Perhaps various branches of genetically enhanced humans will populate different parts of the solar system and eventually diverge into separate species. And one can imagine that rivalries and even warfare may break out between different branches of the human race.”

— Michio Kaku

245. “For example, it takes the entire planet Earth to attract a feather to the floor, but we can counteract Earth’s gravity by lifting the feather with a finger. The action of our finger can counteract the gravity of an entire planet that weighs over six trillion trillion kilograms.”

— Michio Kaku

246. “In 2009, Markram said optimistically, “It is not impossible to build a human brain and we can do it in ten years. If we build it correctly, it should speak and have an intelligence and behave very much as a human does.” He cautions, however, that it would take a supercomputer 20,000 times more powerful than present supercomputers, with a memory storage 500 times the entire size of the current Internet, to achieve this.”

— Michio Kaku

247. “For an animal, the past is largely a waste of precious resources, since it gives them little evolutionary advantage. But simulating the future, given the lessons of the past, is an essential reason why humans became intelligent.”

— Michio Kaku

248. “If we look at the rise of our own civilization over the past 100,000 years, since modern humans emerged in Africa, it can be seen as the story of rising energy consumption.”

— Michio Kaku

249. “Feynman once wrote, quantum mechanics “describes nature as absurd from the point of view of common sense. And it fully agrees with experiment. So I hope you can accept nature as She is–absurd.”

— Michio Kaku

250. “This was the missing piece in the puzzle. The secret of wood that bound matter together was the Yang-Mills filed, not the geometry of Einstein. It appeared as though this, and not geometry, was the central lesson of physics.”

— Michio Kaku