A science program about the possiblilty of Time Travel with Dr David Deutsch.
What remains of the killing-your-earlier-self paradox in general relativistictime travel worlds is the fact that in some cases the states on edgeless spacelike surfaces are ‘overconstrained’, so that one has less than the usual freedom in specifying conditions on such a surface, given the time-travel structure, and in some cases such states are ‘underconstrained’, so that states on edgeless space-like surfaces do not determine what happens elsewhere in the way that they usually do, given the time travel structure. There can also be mixtures of those two types of cases. The extent to which states are overconstrained and/or underconstrained in realistic models is as yet unclear, though it would be very surprising if neither obtained. The extant literature has primarily focused on the problem of overconstraint, since that, often, either is regarded as a metaphysical obstacle to the possibility time travel, or as an epistemological obstacle to the plausibility of time travel in our world. While it is true that our world would be quite different from the way we normally think it is if states were overconstrained, underconstraint seems at least as bizarre as overconstraint. Nonetheless, neither directly rules out the possibility of time travel.
The term [morphic fields] is more general in its meaning than morphogenetic fields, and includes other kinds of organizing fields in addition to those of morphogenesis; the organizing fields of animal and human behaviour, of social and cultural systems, and of mental activity can all be regarded as morphic fields which contain an inherent memory.
—Rupert Sheldrake, The Presence of the Past (Chapter 6, page 112)
Morphogenetic fields contain the information necessary to shape the exact form of a living thing, as part of its epigenetics, and may also shape its behaviour and coordination with other beings.[citation needed] The term morphogenetic field has also been used in a different sense by mainstream developmental biologists, as regions within a developing embryo that will subsequently develop into particular structures or organs. Since the 1920s, mainstream biology has used the term morphogenetic field to mean "that collection of cells by whose interactions a particular organ formed". This usage is distinct from Sheldrake's in that nothing external to the cells themselves is implicated.
In 1981 Rupert Sheldrake outraged the scientific establishment with his hypothesis of morphic resonance. A morphogenetic field is a hypothetical biological field that contains the information necessary to shape the exact form of a living thing. A presentation at the Biology of Transformation Conference in 2007.
Homo Evolutis - Beyond the Crisis there is Evolution
Humans have been evolving over time. Now Juan Enriquez predicts the Homo Evolutis to come next. He is presenting this idea at TED, a conference made for people just like him.
Even as mega-banks topple, Juan Enriquez says the big reboot is yet to come. But don’t look for it on your ballot - or in the stock exchange. It’ll come from science labs, and it promises keener bodies and minds. Our kids are going to be, let’s say - different. Talking first about our current financial crisis he then continues to talk about what will come after the crisis, mainly from a scientific point of view, but with very nice jokes and funny images in between Beyond the crisis, mindboggling science and the arrival of Homo evolutis
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