>>2888826
>The dense vegetation is only next to the most expensive homes.
Who said anything about density? Coastal chaparral/ scrub isn't particularly dense.

>Most homes have only have homes on all sides with a small garden.

Wrong, and ignores all the massive wildfires that go through totally undeveloped areas just as fast or faster.
>The wildfire produces embers
Wow, you got one thing right, finally
>but it's not like a mile away the air is hot enough to spontaneously ignite a building.
Nobody said it would but again you prove that you have no clue WTF you are talking about- the speed of a fires spread is highly dependent on topography that you completely ignore.
Even on flat ground a wildfire's spread rate can be 15 mph, which means it can go a mile in four minutes.
Add in high winds blowing up a canyon and that speed can double or even triple.
But I've personally witnessed smoke and volatile plant vapors spontaneously flash over an area 1/8 of a mile long in the blink of an eye during the 2003 Cedar fire- and on relatively flat ground...not because the entire area was at combustion temperature but because it was covered with highly flammable HYDROCARBON vapors from the terpines and other volatiles in native plants, none of which came from or had anything to do with houses. IOW the smoky, oily vapor filled fucking AIR above the ground ignited and stayed burning long enough for the plants beneath those burning vapors to ignite without any embers or buildings involved.

You have no fucking clue what you are talking about.

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I think it's time we finally stop building what are essentially glorified shacks and update our building codes.