“thus, in a sense, we are all doomed. even if we stay away from black holes”

Last update Oct. 1, 2023. History

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Stephen Hawking122

British theoretical physicist, cosmologist, and author 1942–2018

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“If we had a starship, we could move near a black hole, stay there for a half hour and then come out. Outside hundreds of years could have gone. So we could... come away from the black hole into the far future easily.”

Carlo Rovelli (1956) Italian physicist

Carlo Rovelli: The nature of time (Apr 10, 2020)

“A black hole is the ultimate manifestation of a region of strong gravity. The pull of gravity in a black hole is so strong that even light cannot escape from it and time stands still.”

Jayant Narlikar (1938) Indian physicist

Source: Jayant Narlikar Black Holes http://books.google.com/books?id=8qi55iSSeiwC, National Book Trust, India, 1 January 2006

“We show that it is natural to introduce the concept of black-hole entropy as the measure of information about a black-hole interior which is inaccessible to an exterior observer. Considerations of simplicity and consistency, and dimensional arguments indicate that the black-hole entropy is equal to the ratio of the black-hole area to the square of the Planck length times a dimensionless constant of order unity. A different approach making use of the specific properties of Kerr black holes and of concepts from information theory leads to the same conclusion, and suggests a definite value for the constant.”

Jacob Bekenstein (1947–2015) Mexican-Israeli physicist

[Black Holes and Entropy, Phys. Rev. D, 7, 8, 2333–2346, 15 April 1973, 10.1103/PhysRevD.7.2333]

“Backward we traveled to reclaim the day
Before we fell, like Icarus, undone;
All we find are altars in decay
And profane words scrawled black across the sun.

--From the poem "Doom of the Exiles", written 16 April 1954”

Sylvia Plath (1932–1963) American poet, novelist and short story writer

Source: The Collected Poems

“If we stayed home and did nothing, doom would find us anyway, sooner or later.”

John Ronald Reuel Tolkien (1892–1973) British philologist and author, creator of classic fantasy works

Context: 'Of course, it is likely enough, my friends,' he said slowly, 'likely enough that we are going to our doom: the last march of the Ents. But if we stayed home and did nothing, doom would find us anyway, sooner or later. That thought has long been growing in our hearts; and that is why we are marching now. It was not a hasty resolve. Now at least the last march of the Ents may be worth a song.

“In a previous paper we showed that a static (nonrotating) black hole cannot be endowed with exterior scalar-meson or massive vector-meson fields. Here we show that the same is true for massive spin-2 meson fields. We also extend the above results to the case of a rotating stationary black hole. We conclude from our results that a black hole in its final (static or stationary) state cannot interact with the exterior world via the strong interactions which are mediated by meson fields such as the π (scalar), ρ (vector), and ƒ (spin-2). A direct consequence of this is the impossibility of determining the baryon number of the black hole by means of exterior measurements alone. This results in the transcendence of the law of baryon-number conservation as originally predicted by Wheeler.”

Jacob Bekenstein (1947–2015) Mexican-Israeli physicist

[Nonexistence of baryon number for black holes. II, Physical Review D, 5, 10, 15 May 1972, 2403–2412, 10.1103/PhysRevD.5.2403]

“Sometimes it’s heartbreaking to see your siblings as the people they’ve become. Maybe that’s why we all stay away from each other as a matter of course.”

Jonathan Tropper (1970) American writer