Tazria

Tzaraath, Black Holes, and Holographic Principle

By Alexander Poltorak Abstract This essay explores the profound connections between the biblical laws of tzaraath (Leviticus 13-14) and modern concepts of entropy and the holographic principle in physics. Tzaraath, often misunderstood as mere leprosy, is interpreted as a physical manifestation of underlying spiritual and social disorder and discord, particularly linked to destructive speech (lashon hara). The essay argues that the elaborate rituals of diagnosis, isolation, and purification for tzaraath function to contain and reduce this spiritual/social entropy, restoring social order and inner harmony. Parallels are drawn to Jacob Bekenstein’s discovery that black hole entropy is proportional to its surface area, and the subsequent idea that the information content of a spatial volume might be encoded on its boundary—the holographic principle. It is suggested that a spiritual analog of Beckenstein-Hawking entropy expressing the [...]

By Alexander Poltorak|2025-05-04T18:59:15-04:00May 2nd, 2025|Cosmology, Entropy, Information, Leviticus, Metzora, Parshah, Pentateuch (Chumash), Physics, Tazria, Tazria u’Metzora, Thermodynamics, Uncategorized|1 Comment

The Mystery of the Eighth Day

And on the eighth day, the flesh of his foreskin shall be circumcised. Leviticus 12:3 In the Torah portion of Tazria, we are commanded to circumcise a male child on the eighth day. In the previous Torah portion, Shemini, we read that the dedication of the Tabernacle (Mishkan) also took eight days, and only on the eighth day the Shechinah (“divine presence”) rested on it. What is the significance of the eighth day? Chasidic philosophy interprets the eighth day as the day after seven days. In numerous writings (ma’amarim) and talks (siḥot), the Rebbes of Chabad stated that seven days represent nature, whereas the eighth day is a day above nature.[1] The eighth day represents the supernatural. Why, you may ask, do the seven days represent nature? We are told that the number [...]

By Alexander Poltorak|2025-04-28T11:28:17-04:00April 14th, 2024|Kabbalah, Leviticus, Parshah, Pentateuch (Chumash), Space, Spirituality, Tazria, Time, Uncategorized, Vayikra|0 Comments

Leprous Cats and Angry Birds

In the Torah portion Tazriah (Leviticus 13), the Schrödinger cat[1] gets leprosy. Well, it’s not really leprosy, it’s a mysterious supernatural disease called tzara’as, nowadays translated as psoriasis. And it’s not a cat, but a Jew who gets afflicted by tzara’as. In fact, cats, other animals, and even gentiles (i.e., non-Jewish humans) are immune to this spiritual malady. So why do I call a poor Jew afflicted with tzara’as a “Schrödinger cat”? Because he sure acts like one. Indeed, had I not studied quantum mechanics and had I not learned about the collapse of the wave function[2] back at the university, I would have surely discovered it by reading this Torah portion (parshah)! A Jewish person with a skin lesion or boldness (present company excluded) is brought to a priest (kohen), who examines it [...]

By Alexander Poltorak|2024-04-12T16:53:20-04:00April 30th, 2012|Bayesian probability, Collapse of the wavefunction, Entanglement, Isaiah, Kabbalah, Metzora, Parshah, Quantum Theory, Superposition, Tazria, Tazria u’Metzora, Uncategorized, Zohar|1 Comment

The Mystery of the Eighth Day

Leprous Cats and Angry Birds

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