My curiosity is with the rapid heat just before another inter-glacial. See the graph I posted in #4, that is a relatively extreme rapid change from glacial to inter-glacial in every case. Wonder which of these orbit cycles you mention causes this?
It is the interplay and overlap of the 11 cycles that drive the changes shown in the charts. Stand back and look at them and you will see more and more repetition over time. The shortest cycle is 11 years, the longest 3 million. To the untrained eye the patterns may look random but they’re not. I haven’t worked in this field in over thirty years so I’m a little rusty.