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BRAIN SENSORS DECODE THOUGHT. “A man paralyzed from the neck down for almost a decade has used his mind to compose whole sentences in real-time.” https://lnkd.in/dgcGRaf View in LinkedIn

THE END OF SPACE AND TIME. “These characterize physical regimes at which quantum gravity effects are expected to be important, and—perhaps—where the continuum picture of space and time breaks down. Like the Planck length, their values are such that they are empirically inaccessible except in the very early universe. For example, the Planck time LT is about 10(-42) seconds, and the Planck energy is 10(19) GeV.” https://lnkd.in/dMm_YkR View in LinkedIn

PLANCK UNITS. “The value of the Planck length is around 10(-33) cm, which is truly miniscule: the diameters of an atom, nucleus, proton and quark are, respectively, about 10(-8), 10(-12), 10(-13), and 10(-16) cm. So the Planck length is as many orders of magnitude from the (upper limit for) the diameter of a quark, as that diameter is from our familiar scale of a centimetre! The same point can also be made in regard to the other so-called ‘Planck scales’: the Planck time, the Planck energy, and the Planck temperature.” https://lnkd.in/dMm_YkR View in LinkedIn

SMALLEST LENGTH. “Quantum gravity effects should be important at about a length-scale called the ‘Planck length’.” https://lnkd.in/dMm_YkR View in LinkedIn

VICTIM OF ITS OWN SUCCESS. “It should be admitted from the outset, that the subject of quantum gravity is exceptionally difficult and problematic, both in regard to mathematical and to conceptual issues. Furthermore, these problems are compounded by the almost complete lack of any unequivocal data to guide attempts to construct such a theory. In this sense, twentieth-century physics is a victim of its own success: the empirical success of general relativity and quantum theory in their present forms means that we lack data bearing on how we might reconcile them (or more generally, replace them).” https://lnkd.in/dMm_YkR View in LinkedIn

WHERE WORDS FAIL. “This inaccessibility not only implies a lack of data. It is so extreme that it suggests that those aspects of reality that require a theory of quantum gravity for their description hardly deserve such names as ‘appearance’, ‘phenomenon’, or even perhaps ‘empirical reality’.” https://lnkd.in/dMm_YkR View in LinkedIn

MEMORY. “The critical state of an enhanced memory capacity is reached due to the high excitations (i.e., the high occupation numbers) of some of the neurons, which – due to the excitatory synaptic connections ‐ lowers the excitation thresholds for others. We choose the highly excited neuron to be the one with the lowest energy threshold.” https://onlinelibrary.wiley.com/doi/full/10.1002/prop.201800007?casa_token=GdPRXs_tGLEAAAAA%3Ag-pxPMtkcleTYDUNK3mYGfpEzKRyc2LqQknTgFFB7dkYFDL8rDe2s0f4_0Q0oKjXD4_AEgFPGWolVTQ View in LinkedIn

THE GREAT UNKNOWN. “The difficulties arise from the inaccessibility of the Planck scale (at least, in regard to terrestrial experiments), and the associated lack of any specific data to guide theoretical speculations.” https://lnkd.in/dMm_YkR View in LinkedIn

NEURAL NETWORK. “However, the sense of geometry is provided by the concept of a quantum field. Indeed, while the interaction of the quantum fields in position space is local, in momentum space it is not. The fact that the neurons are translated into the momentum modes, shows how to connect them to geometry.” https://onlinelibrary.wiley.com/doi/full/10.1002/prop.201800007?casa_token=GdPRXs_tGLEAAAAA%3Ag-pxPMtkcleTYDUNK3mYGfpEzKRyc2LqQknTgFFB7dkYFDL8rDe2s0f4_0Q0oKjXD4_AEgFPGWolVTQ View in LinkedIn

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