"Under the roof of one controversial assumption about physics, we discuss five big questions that can be addressed usi…"

"Feynman considered Fredkin a brilliant and consistently original, though sometimes incautious, thinker. If anyone is …"

"Bennett from IBM, Fredkin, and later Toffoli investigated whether, with gates that are reversible, you can do everyth…"

"Rule 1 of cryptanalysis: check for plaintext."

"Never underestimate the attention, risk, money, and time that an opponent will put into reading traffic."

"It is easy to run a secure computer system. You merely have to disconnect all dial-up connections and permit only dir…"

"The ability to imagine relations is one of the most indispensable conditions of all precise thinking. No subject can …"

"Man does not dwell at the centre of things, but is the denizen of an obscure and tiny speck of cosmical matter quite …"

"In a very deep sense all human science is but the increment of the power of the eye, and all human art is the increme…"

"The United States—bounded on the north by the Aurora Borealis, on the south by the precession of the equinoxes, on th…"