Blue Monkey
Archon Without Portfolio
Ozy -
in the process of retracing sources for images recovered the link for a dense but useful chart. The downside is that most of the included graphs stop at 10k years BP or use millions of years as a base unit. So there is not much detail specific to the timeframe you are working with - at least for the first era. OTOH, it does show relationships between climatic change and culture which you could extrapolate from.
And just skimming it for the broad outlines is useful: There are overlapping cycles, cycles vary, cycles reinforce or dampen each other, there is not an exact synchrony between cycles, cycles affect different parts of the world differently. The consequences play out geologically and geographically, as well as ecologically and culturally. We just don't understand things well enough as a species to know with precision which synchronicities involve causal relationships and which are correlations. Ultimately, at this point, we're left with the scientific equivalent of best guesses.
In an alternate world/history a different set of alignments might both minimize some effects and push others to extremes. The deeper you go chronologically the more "butterfly effect" you've got to free up your imagination. Not just in terms of the map, either. The chart has some info on the cultural responses, albeit nothing on the scale of deep history.
Your beginning point is a punctuated equilibrium so different that we "left home" on the other side of the last turning of the mysterious 100,000 year cycle. In addition to climatic and geological divergences, There's room for a lot of imaginative speculation about how your culture groups and the individual civs within them would respond to a different physical world.
I'm sure a lot of us are eager to see how you play the improvisations and riffs of this particular Fantasia.
in the process of retracing sources for images recovered the link for a dense but useful chart. The downside is that most of the included graphs stop at 10k years BP or use millions of years as a base unit. So there is not much detail specific to the timeframe you are working with - at least for the first era. OTOH, it does show relationships between climatic change and culture which you could extrapolate from.
And just skimming it for the broad outlines is useful: There are overlapping cycles, cycles vary, cycles reinforce or dampen each other, there is not an exact synchrony between cycles, cycles affect different parts of the world differently. The consequences play out geologically and geographically, as well as ecologically and culturally. We just don't understand things well enough as a species to know with precision which synchronicities involve causal relationships and which are correlations. Ultimately, at this point, we're left with the scientific equivalent of best guesses.
In an alternate world/history a different set of alignments might both minimize some effects and push others to extremes. The deeper you go chronologically the more "butterfly effect" you've got to free up your imagination. Not just in terms of the map, either. The chart has some info on the cultural responses, albeit nothing on the scale of deep history.
Your beginning point is a punctuated equilibrium so different that we "left home" on the other side of the last turning of the mysterious 100,000 year cycle. In addition to climatic and geological divergences, There's room for a lot of imaginative speculation about how your culture groups and the individual civs within them would respond to a different physical world.
I'm sure a lot of us are eager to see how you play the improvisations and riffs of this particular Fantasia.