When you change the rules of transfer in a subset of nodes/users, then all of a sudden there is disagreement about who owns what: there are two ledgers, and you look at the one whose opinion about "ownership" you agree with.
So the "fork" is a fork in ownership or truth: a difference of opinion about who owns what. Nothing more, nothing less.
But it's a complicated economic effect to predict, because it's likely that the losing side (the opinion with the smaller number of nodes supporting it) will wither and die - one major value proposition of bitcoin is that it's universal. But what happens to the people who used that losing fork in the interim? Well, basically none of their transactions were "real" (they didn't take place on the ledger that eventually won), and if you sold something to someone on that ledger, then they have the goods/services, and you have nothing.
But will the bitcoin client (from bitcoin.org) update to the winning rules or will I need to download it from somewhere else depending on who the winner is?
This one is better: https://media.coindesk.com/uploads/2017/07/Screen-Shot-2017-...
⒈ get repeatedly caught up on basic blockchain concepts (i.e. go in circles w/ terminology)
⒉ know absolutely nothing about the politics of the decision-making up to now
⒊ yet have already been exposed to somebody's propaganda and half-internalized the wrongthink
So i'm not sure that a flowchart of just the proposals w/o entities serves much purpose. Its audience is essentially limited to devs who just need to be caught up on current events.
Coin Dance already has this information available, but across two dashboard-style pages⁽¹⁾⁽²⁾ — not quite arranged efficiently enough for an interactive infographic.
Starting from "know your hardforks" and adding the missing bits from the flowchart as tooltip or on-hover information could work.
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For a more general/conceptual understanding of blockchain technology and its applications, including non-cryptocurrency applications, "Blockchain Revolution" is a good read.[2]
[1] Mastering Bitcoin http://amzn.to/2uewdK9
[2] Blockchain Revolution http://amzn.to/2vniXSf