Poesia Digital

Nessa entrevista, Eduardo Kac, artista pioneiro da arte digital que tem obras exibidas regularmente na América do Sul e do Norte, na Europa, na Austrália, e na Ásia, reflete sobre as relações entre a arte e as novas mídias, sua trajetória e as possibilidades da poesia digital.

O Movimento de Arte Pornô: a Aventura de uma Vanguarda nos Anos 80

The Porn Art Movement (Movimento de Arte Pornô) was an experimental art movement I launched in Rio de Janeiro that lasted, as a sustained interventionist effort, for two years, from February 1980 to February 1982. It was the last organized avant-garde movement in Brazilian art and poetry. It was also known as Pornpoetry (Poesia Pornô) or Pornism and in what follows I will alternately use any of the movement’s three names. The movement carried out numerous public interventions, published three zines, two anthologies, several opuscules and varied publications, and developed a broad audience1. Pornism began as a poetry movement and quickly expanded into many other areas, upending aesthetic norms across many different media, upsetting the accepted parameters of everyday experience, and modeling new modes of being.O Movimento de Arte Pornô foi um movimento de arte experimental que iniciei no Rio de Janeiro e que durou, como um intervencionismo programático, por dois anos, de fevereiro de 1980 a fevereiro de 1982. Foi o último movimento de vanguarda organizado na arte e na poesia brasileiras. Também ficou conhecido como Poesia Pornô, Pornismo, ou Movimento Pornô ; neste artigo, usarei alternadamente os vários nomes desse movimento. O movimento realizou diversas intervenções públicas, editou três zines, duas antologias, diversos opúsculos e variadas publicações, e dirigiu-se a um público amplo1. O Pornismo começou como um movimento poético e rapidamente expandiu-se para outras áreas, subvertendo as normas estéticas em diferentes meios, desestabilizando as convenções que regem a experiência cotidiana e dando forma a novos modos de ser e estar no mundo

Video 1- Inner Telescope (2007-2017).

[video:ek1

Video 2 - Natural History of the Enigma (2003-08).

[video:ek2

Poincare recurrences and transient chaos in systems with leaks

In order to simulate observational and experimental situations, we consider a leak in the phase space of a chaotic dynamical system. We obtain an expression for the escape rate of the survival probability applying the theory of transient chaos. This expression improves previous estimates based on the properties of the closed system and explains dependencies on the position and size of the leak and on the initial ensemble. With a subtle choice of the initial ensemble, we obtain an equivalence to the classical problem of Poincare recurrences in closed systems, which is treated in the same framework. Finally, we show how our results apply to weakly chaotic systems and justify a split of the invariant saddle in hyperbolic and nonhyperbolic components, related, respectively, to the intermediate exponential and asymptotic power-law decays of the survival probability.Comment: Corrected version, as published. 12 pages, 9 figure

Poincare recurrences from the perspective of transient chaos

We obtain a description of the Poincar\'e recurrences of chaotic systems in terms of the ergodic theory of transient chaos. It is based on the equivalence between the recurrence time distribution and an escape time distribution obtained by leaking the system and taking a special initial ensemble. This ensemble is atypical in terms of the natural measure of the leaked system, the conditionally invariant measure. Accordingly, for general initial ensembles, the average recurrence and escape times are different. However, we show that the decay rate of these distributions is always the same. Our results remain valid for Hamiltonian systems with mixed phase space and validate a split of the chaotic saddle in hyperbolic and non-hyperbolic components.Comment: 4 pages and 4 figures, final published versio