Thankfully, I don’t think that’s track lighting. It may have also been used for other gym equipment before the house got staged for sale. There’s no electricity, and the loops look pretty strong. I’ll bet it’s anchored into the beams.

An engineer friend hooked up a chain and a baby carseat carrier with heavy-duty hardware to their high-ceiling rafter in their open-plan kitchen-with-sunken-living-room area. Fortunately, his wife is also an engineer, although she was still markedly less enthusiastic about the project that he was… but it turned out to be the biggest (a longer sweep than the average playground swingsets give you), most soothing baby swing ever. I never saw it with a child in it, but apparently they could just sit at the table and give the kid a bit of an extra push every other time the swing approached the table to keep the swing going – and the kid happy – straight through the meal. (the swing was decommissioned when their first baby aged out of it and they had additional kids; it’s one thing to swing babies before they’re mobile at all, but it’s another thing to give a launchpad to a toddler…)

Well, that’s unusual!