  We construct a model of Pauli spin operators with all-to-all 4-local
interactions by replacing Majorana fermions in the SYK model with spin
operators. Equivalently, we replace fermions with hard-core bosons. We study
this model numerically and compare the properties with those of the SYK model.
We observe a striking quantitative coincidence between the spin model and the
SYK model, which suggests that this spin model is strongly chaotic and,
perhaps, can play some role in holography. We also discuss the path-integral
approach with multi-local fields and the possibility of quantum simulations.
This model may be an interesting target for quantum simulations because Pauli
spins are easier to implement than fermions on qubit-based quantum devices.
