What does the double slit experiment have to do with TM? Haven't you read the entry in Wikipedia for John Hagelin?
To Quote: " Virtually every theoretical physicist in the world rejects all of this as nonsense and the work of a crackpot, but Hagelin's case shows that crackpots can have PhDs from the Harvard Physics Department and a large number of frequently cited papers published in the best peer-reviewed journals in theoretical physics.[17] https://en.wikipedia.org/wiki/John_Hagelin#cite_note-FOOTNOTEWoit2006205.E2.80.93206-17 Hagelin's linkage of quantum mechanics and unified field theory with consciousness was also critiqued by University of Iowa https://en.wikipedia.org/wiki/University_of_Iowa philosophy and sociology professors Evan Fales and Barry Markovsky in 1997, in the journal Social Forces https://en.wikipedia.org/wiki/Social_Forces. They wrote that the connection relied on similarity between properties of quantum mechanical fields and consciousness, but that the parallels Hagelin highlighted between unified field theories and the Vedas rested on ambiguity, obscurity and vague analogy supported by the construction of arbitrary similarities.John Hagelin - Wikipedia https://en.wikipedia.org/wiki/John_Hagelin#cite_note-FOOTNOTEFalesMarkovsky1997511.E2.80.93525-29 https://en.wikipedia.org/wiki/John_Hagelin#cite_note-FOOTNOTEFalesMarkovsky1997511.E2.80.93525-29 John Hagelin - Wikipedia https://en.wikipedia.org/wiki/John_Hagelin#cite_note-FOOTNOTEFalesMarkovsky1997511.E2.80.93525-29 John Samuel Hagelin (born June 9, 1954) is an American author, three-time candidate of the Natural Law Party for President of the United States (1992, ... View on en.wikipedia.org https://en.wikipedia.org/wiki/John_Hagelin#cite_note-FOOTNOTEFalesMarkovsky1997511.E2.80.93525-29 Preview by Yahoo