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END OF PAPER. This concludes this difficult and extraordinary paper by Gia Dvali of the Max Planck Institute in Germany. It illustrates the type of extreme thinking that is possible when physicists turn their minds to biology, and the novelty of their whole approach. It will be a great day when more physicists think about biological complexity with their very special way of analyzing reality. https://onlinelibrary.wiley.com/doi/full/10.1002/prop.201800007?casa_token=GdPRXs_tGLEAAAAA%3Ag-pxPMtkcleTYDUNK3mYGfpEzKRyc2LqQknTgFFB7dkYFDL8rDe2s0f4_0Q0oKjXD4_AEgFPGWolVTQ View in LinkedIn

FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on an exceptional article by Professor Jeremy Butterfield on quantum issues including gravity and time. We are lucky to have great minds contemplating these marvelous issues, for the world becomes a different place after their illuminations. View in LinkedIn

HOLOGRAM. “For a certain symmetry structure of the network, the gapless modes appear to inhabit a lower dimensional surface area, thereby displaying a holographic behaviour.” https://onlinelibrary.wiley.com/doi/full/10.1002/prop.201800007?casa_token=GdPRXs_tGLEAAAAA%3Ag-pxPMtkcleTYDUNK3mYGfpEzKRyc2LqQknTgFFB7dkYFDL8rDe2s0f4_0Q0oKjXD4_AEgFPGWolVTQ View in LinkedIn

This image is deeply embedded in ancient Girona stonework. View in LinkedIn

NOT A CONTRADICTION. “Computers by their very nature are the most inflexible, desireless, rule-following of beasts. Fast though they may be, they are nonetheless the epitome of unconsciousness. How, then, can intelligent behavior be programmed? Isn't this the most blatant of contradictions in terms?” (Clue, this book makes the case that this is not true). https://lnkd.in/dmfn9qW View in LinkedIn

THE RABBIT HOLE. “The physical content of the concept of black-hole entropy derives from the following generalized version of the second law: When common entropy goes down a black hole, the common entropy in the black-hole exterior plus the black-hole entropy never decreases.” https://lnkd.in/d_-_tga View in LinkedIn

BLACK HOLE ENTROPY. “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.” https://lnkd.in/d_-_tga View in LinkedIn

THE EQUATION. “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.” https://lnkd.in/d_-_tga View in LinkedIn

THE HIDDEN INSIDE. “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.” https://lnkd.in/d_-_tga View in LinkedIn