In attempting to walk, I’d gathered more current data: the medical setup had been retrofitted into an older structure. Old bolts and fittings still marked places on the cabin walls where previous equipment configurations had been changed or removed. Big cables had been run along the walls, then clamped off as no longer necessary. Faded paint and letters were scratched into the bulkhead, phrases, names. The manual control panel for the hatch was so old-fashioned I thought it was a small art installation.