Greg, the options weren’t well encoded because they’re just silly examples. Regardless, those examples (changing the time on the clock, dying dad) simply cannot be Timelocks because the time isn’t fixed. Fixed means a specific moment in time that doesn’t change. Unless the dad’s under a magical curse to drop dead on a given date, the limit is one of space, not time. I had a similar question here (dying mom) which Chris clarified similarly: Timelock - specificity of deadline
Okay, thanks Chris. Interesting.