TL;DR
This paper reviews recent advances in understanding quantum gravity at the Planck scale, focusing on progress in string theory over the past four years.
Contribution
It provides an overview of developments in string theory related to quantum gravity near the Planck length as of 1998.
Findings
Significant progress in string theory understanding of Planck-scale physics
Enhanced theoretical frameworks for quantum gravity
Insights into the structure of spacetime at the Planck length
Abstract
I describe our understanding of physics near the Planck length, in particular the great progress in the last four years in string theory. These are lectures presented at the 1998 SLAC Summer Institute.
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