Background: Hilary Whitehall Putnam (; July 31, 1926 - March 13, 2016) was an American philosopher, mathematician, and computer scientist, and a major figure in analytic philosophy in the second half of the 20th century. He made significant contributions to philosophy of mind, philosophy of language, philosophy of mathematics, and philosophy of science. At the time of his death, Putnam was Cogan University Professor Emeritus at Harvard University. He was known for his willingness to apply an equal degree of scrutiny to his own philosophical positions as to those of others, subjecting each position to rigorous analysis until he exposed its flaws.
Context: In the field of epistemology, Putnam is known for his "brain in a vat" thought experiment (a modernized version of Descartes's evil demon hypothesis). The argument is that one cannot coherently state that one is a disembodied "brain in a vat" placed there by some "mad scientist". This follows from the causal theory of reference. Words always refer to the kinds of things they were coined to refer to, thus the kinds of things their user, or the user's ancestors, experienced. So, if some person, Mary, were a "brain in a vat", whose every experience is received through wiring and other gadgetry created by the "mad scientist", then Mary's idea of a "brain" would not refer to a "real" brain, since she and her linguistic community have never seen such a thing. Rather, she saw something that looked like a brain, but was actually an image fed to her through the wiring. Similarly, her idea of a "vat" would not refer to a "real" vat. So, if, as a brain in a vat, she were to say "I'm a brain in a vat", she would actually be saying "I'm a brain-image in a vat-image", which is incoherent. On the other hand, if she is not a brain in a vat, then saying that she is a brain in a vat is still incoherent, but now because she actually means the opposite. This is a form of epistemological externalism: knowledge or justification depends on factors outside the mind and is not solely determined internally. Putnam has clarified that his real target in this argument was never skepticism, but metaphysical realism. Since realism of this kind assumes the existence of a gap between how man conceives the world and the way the world really is, skeptical scenarios such as this one (or Descartes' evil demon) present a formidable challenge. Putnam, by arguing that such a scenario is impossible, attempts to show that this notion of a gap between man's concept of the world and the way it is, is in itself absurd. Man cannot have a "God's eye" view of reality. He is limited to his conceptual schemes. Metaphysical realism is therefore false, according to Putnam.
Question: Was this experiment done on humans?
Answer:

Background: Once is a 2007 Irish romantic musical drama film written and directed by John Carney. The film stars Glen Hansard and Marketa Irglova as two struggling musicians in Dublin, Ireland. Hansard and Irglova had previously performed music as the Swell Season, and composed and performed the film's original songs. Once spent years in development with the Irish Film Board and was made for a budget of EUR112,000.
Context: A rough cut of the film was previewed on 15 July 2006 at the Galway Film Fleadh, but the film was subsequently turned down by several prestigious European film festivals. However, once finished, it secured spots at the 2007 Sundance Film Festival on 20 January 2007 and the Dublin Film Festival in February 2007, and received the audience awards at both events. The film was first released on cinema in Ireland on 23 March 2007, followed by a limited release in the United States on 16 May 2007. After its second weekend in release in the United States and Canada, the film topped the 23 May 2007 indieWIRE box office chart with nearly $31,000 average per location. As of 28 March 2009, Once has grossed nearly $9.5 million in North America and over $20 million worldwide. After 2007's box office success and critical acclaim, it won the Independent Spirit Award for Best Foreign Film. Steven Spielberg was quoted as saying "A little movie called Once gave me enough inspiration to last the rest of the year". When informed of Spielberg's comments, director John Carney told Sky News, "in the end of the day, he's just a guy with a beard". At the time of this interview, Carney himself was also wearing a beard. The song "Falling Slowly" won the 2007 Academy Award for Best Original Song. The nomination's eligibility for the Oscar was initially questioned, as versions of the song had been released on The Cost and The Swell Season albums, but this was resolved before the voting for the award took place. The AMPAS music committee satisfied themselves that the song had indeed been written for the film and determined that, in the course of the film's protracted production, the composers had "played the song in some venues that were deemed inconsequential enough to not change the song's eligibility".
Question: What was the first film festival to accept it?
Answer:
A rough cut of the film was previewed on 15 July 2006 at the Galway Film Fleadh,