Moving around this way was not difficult. At least 50 percent of the building’s frontage consisted of grids just like the one Marlon was hanging from. The only aspect of this that was remotely problematic was finding ways to make the transition from one grid to the next. In many cases, this was made considerably easier by other features that had been attached to the outside of the building: awnings, brackets for external air-conditioning units, bundles of cables, plumbing, downspouts, and quasi-European architectural bric-a-brac, cast in concrete.