Teoria ou loucura?
Autor: Matheus de Oliveira Corrêa | Publicado: 2011-05-22T19:26:00-07:00

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Suicídio quântico consiste em uma teoria criada a partir de um experimento mental  no qual imagina-se um homem que se senta frontalmente a uma arma e a  aponta para sua cabeça. A arma está ligada a uma máquina que mede o giro  de partículas quânticas. Cada vez que se puxa o gatilho, o giro da partícula quântica, ou quark,  é medido e assim, dependendo da medida a arma dispara ou não. Se a  medida mostrar que a partícula quântica está girando em sentido horário,  a arma dispara; Se em sentido anti-horário, a arma não dispara. Como  existe a possibilidade de 50% para cada caso, a Interpretação de muitos mundos  diz que, a cada turno do experimento, as duas possibilidades serão  verdadeiras, com uma divisão do universo nas duas versões possíveis.  Logo, o homem puxa o gatilho pela primeira vez e a arma não dispara; ele  então puxa o gatilho novamente e novamente a arma não dispara. O homem  continuará a puxar o gatilho com o mesmo resultado: a arma não vai  disparar, uma vez que a partícula continuará seu giro no mesmo sentido.  Mas, de acordo com a interpretação de muitos mundos, quando o homem puxa  o gatilho pela primeira vez, o universo se divide em dois, e, numa  outra versão da realidade, a medida mostra que o quark está girando no  sentido horário. Conseqüentemente, a arma dispara e o homem morre. Mas  como vimos inicialmente, a cada nova realização do experimento, os dois  casos serão verdadeiros. Ele não tem consciência disso, mas está vivo e  morto, e cada vez que ele puxa o gatilho, o universo se divide em dois e  vai continuar a se dividir cada vez que o gatilho for puxado, criando  múltiplas realidades. Não importa quantas vezes ele puxar o gatilho, em  uma das realidades possíveis a arma não irá disparar e assim, ele vai  continuar o processo eternamente, tornando-se "imortal".
Essa curiosa teoria foi proposta por Max Tegmark, atualmente professor do MIT, essa teoria sem duvidas rende muitas discusões para diversos campos da filosofia.