A thread on the wave function of the universe. 🧵 Modern quantum cosmology assumes that a Planck-sized universe with closed spatial topology can spontaneously nucleate from nothing, where "nothing" is the absence of matter, radiation, space, and time.

A technical thread on C.F. von Weizsäcker (the original quantum information theorist) and the nature of time.🧵1/ At a spa in Bad Wildungen in 1954, an idea came to Weizsäcker: the quantum theory of bits *is* the theory of objects in 3-dimensional space. 2/

A 🧵on Everett’s principle of quantum universality and its conformal bootstrap, a spin-off of @seancarroll’s quantum-first program. 1/22 @seancarroll Everett’s proposition is radically conservative: assume the Schrödinger equation is valid on all scales and throw away the collapse postulate. 2/22

My undergrad thesis advisor has a breakthrough paper to appear in PNAS titled: “Stomatal Patchiness and Cellular Computing” that you should watch out for! 1/4 Stomata are variable aperture pores that allow carbon dioxide to enter a plant leaf to participate in photosynthesis while simultaneously controlling water loss due to evaporation. 2/4

So a prestigious institution (or rather a prof. from one) asked me to apply to a grad program that had closed applications on Feb 1st. An unusual grad application🧵. 1/16 I was asked to give a short-notice talk on the research program I’ve been developing. It was a great deal of fun! Using a manuscript for a talk was challenging, but we made due and got through quite a bit of material in an hour. 2/16