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Bronze-level articleLast Thursdayism

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Last Thursdayism (alternately Last Tuesdayism or Last Wednesdayism) is the idea that the universe was created last Thursday, but with the physical appearance of being billions of years old. Under Last Thursdayism, books, fossils, light already on the way from distant stars, and literally everything (including your memories of the time before last Thursday) were all formed at the time of creation (last Thursday) in a state such that they appear much older.

Last Thursdayism functions both as philosophical point on how our observations may not match with "reality" and a reductio ad absurdum of the young-Earth creationist idea of omphalism: if the world was created 6000 years ago with the appearance of being made billions of years ago, what is there to stop us from claiming it was made Last Thursday?

The debate on whether Last Thursdayism is true has raged on ever since the creation of the universe last Thursday its inception.

Contents

[edit] Falsifiability

See the main article on this topic: Falsifiability

The following quote from Fundies Say the Darndest Things explains why people find the Last Thursdayism idea difficult to comprehend:[1]

Last Thursdayism is false because I clearly remember events from before Last Thursday. It does not follow that God could have fixed our minds and experiences to make us think we only felt things before last Thursday. For example I have a note with the date on it, "Wednesday, July 15, 2009." This would not be possible if the world was created on "Thursday July 16, 2009."

Rational viewers (and, really, anyone with real common sense) can spot the flaw in the above argument: if God placed your memories of events before Last Thursday into your mind, then it would appear as if you remembered something "before" Last Thursday. Because Last Thursdayism can explain anything, it operates as an unfalsifiable hypothesis (much like the omphalos hypothesis itself).

[edit] Occam's Razor

See the main article on this topic: Occam's Razor

Last Thursdayism (and any similar idea) can be seen as "hyperomphalisms", extreme forms of omphalist doctrine designed to show the absurdity of it. As such they constitute a skeptical hypothesis of the very existence of past, not just events that occur within it.

However, the assumption that all of the universe was specially created is unnecessarily complex (given you have all the evidence for an old universe PLUS the assumption that it was deceitfully created to look old); it thus makes more sense, via Occam's Razor, to assume uniformitarianism and an old universe.

[edit] Origins

Bertrand Russell explained in 1921 the problems with proving that the universe was created, intact, at a set point in the past in his "five minute hypothesis":

There is no logical impossibility in the hypothesis that the world sprang into being five minutes ago, exactly as it then was, with a population that "remembered" a wholly unreal past. There is no logically necessary connection between events at different times; therefore nothing that is happening now or will happen in the future can disprove the hypothesis that the world began five minutes ago.
Bertrand Russell, The Analysis of Mind, 1921, pp. 159–60) [2]

The recent manifestation of Last Thursdayism occurred on the Usenet group talk.origins in 1992, as a hyperbolic response to omphalism and apocalyptic preaching:[3]

As everyone knows, it was predicted that the world would end last Wednesday at 10:00 PST. Since there appears to be a world in existence now, the entire universe must therefore have been recreated, complete with an apparent "history", last *Thursday*. QED.

It gradually gained popularity; on August 25, 1996, the "Church of Last Thursday FAQ" (an early version of "The Last Thursday Catechism"[4]) was posted to talk.origins by Michael Keane.[5] This version is similar to Unicornism or Pastafarianism, and claims that the universe was created Last Thursday by "Queen Maeve the Housecat", who on Next Thursday (Judgment Day) will admit those who were nice to cats to Paradise and damn the unkind, the uncaring, and Creationists to the never-cleaned Eternal Litterbox.

In some circles, especially talk.origins, Last Tuesdayism is taken as a schism of Last Thursdayism and is founded on the belief that the world was created last Tuesday -- but, unlike last Thursdayism, this happens every Tuesday.

A new incarnation of Last Thursdayism has popped up, and appears to be a kind of solipsism:[6]

We, the Last Thursdayists, followers of Last Thursdayism, members of The Church of Last Thursday, believe:
  • that the universe was created on Thursday, and will expire on Thursday.
  • that the universe was created by You as a test for yourself.
  • that you will be rewarded or punished when this universe expires based on your actions here.
  • that left-handedness is a sinful temptation.
  • that everyone but you was placed here and pre-programmed to act as parts of your test environment.
  • that everyone but you knows this.

[edit] See also

[edit] External links

[edit] Footnotes


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