I will discuss spacetime dependent solutions with running scalar fields in string theory setups exhibiting singularities at finite distance in spacetime. I will argue that these singularities are resolved in the complete theory as boundaries ending spacetime, in a dynamical version of the Swampland Cobordism Conjecture. The near singularity regime of the solutions exhibit interesting scaling relations for the spacetime curvature and the exponentially diverging distance in scalar field space, which suggest interesting links with the Swampland Distance Conjecture. I will mainly discuss space dependent solutions, but present a time dependent example exhibiting a boundary in the time direction, as a Lorentzian avatar of the Hartle-Hawking origin of the universe.
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Meeting ID: 692 9074 0393