What if Chicxulub had missed?
Mammalian and avian evolution would not have had a near vacuum to expand in to, flowering plants neither. What would reptiles have become if their Age continued? Would mammals have subverted it? Would the emergence of shared intentionality have still occurred, but in which class?

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He ain't extinct yet. Nowhere near, this so called Pee Emm for good times only.
The main driver of human intelligence was humans. And adversity. Particularly the last ice age maximum.
Some say they do. Run things.
In fairness, I think the conspiracy theory is that the loons in government are just window dressing for the real rulers of the world. Y'know. Them. Oh fuck it we all know it ends up at blaming the Jews. All conspiracy theories lead eventually to anti-semitism.
Or maybe that's just what they want you to think.
You could also look to the Permian-Triassic extinction event, in addition to this one, The Permian was more severe.
I personally enjoy thinking about the Cambrian Explosion, which shows that many more body plans than currently exist, existed then, of which the selection of them appears relatively chancy. The question asked by the @OP is discussed more about this than the K-T event. (My father was a research geologist)
That humans are here in our form is merely one of the many possibilities for what a body might look like.
Alternatively, is this a Private Board in a parallel but very alien universe that are somehow goes onto the ordinary ship by mistake?
Yes. There is a crater buried beneath the Yucatan and partly in the ocean. The Alvarez father and son team suggested that the lawyer of iridium between the strata of rock dating to the time of the end of the Cretaceous period and end of dinosaurs was probably due to an asteroid: https://en.wikipedia.org/wiki/Alvarez_hypothesis
I remember my father talking about. He said at the time that everyone thought it was crackers.
I don't know what the thread is about though; is he asking if the asteroid had missed the place it did hit? It would have hit elsewhere whth similar ot other effects. What else might he mean? Dunno.
(I'm in favour of clear thread titles and OP.)
"The numerous cenotes (sinkholes) clustered around the trough of the crater suggest a prehistoric oceanic basin in the depression left by the impact."
I am aware of that episode, but haven't got that far through. Have met the Silurians though!
"A good many times I have been present at gatherings of people who, by the standards of the traditional culture, are thought highly educated and who have with considerable gusto been expressing their incredulity at the illiteracy of scientists. Once or twice I have been provoked and have asked the company how many of them could describe the Second Law of Thermodynamics. The response was cold: it was also negative. Yet I was asking something which is the scientific equivalent of: Have you read a work of Shakespeare's?[5] I now believe that if I had asked an even simpler question – such as, What do you mean by mass, or acceleration, which is the scientific equivalent of saying, Can you read? – not more than one in ten of the highly educated would have felt that I was speaking the same language."
As for the cenotes, there seem to be two types. Some are naturally collapsed cave roofs, but others are thought possibly to have been caused by the impact of lesser fragments at the time of the main Chicxulub impact.
Yeah, there does seem to be a weird thing (is it specific to the English-speaking world?) that considers knowledge of art, literature and dead languages as being "general knowledge" that should be common to any "educated" person while relegating even the most basic of secondary school scientific ideas to the realm of geeks and weirdos. I assume it's an artifact of the public school curriculum.
Funny thing happened to me once.
Picture yourself in a room full of Primary B.Ed. students. The specialist subject of the vast majority for some reason was (and I gather generally is) English. It's reasonable to guess that for most of them their A levels were all in humanities.
Dotted in this sea of English specialists are a handful of Maths, Science, D&T and PE specialists. The English specialists outnumber the others all combined about 2:1.
The session was on Drama. We were charged with the dramatic task of pacing with a pre-occupied demeanour. To that we were then asked to add acting that we had something stuck to our hands that we couldn't get off. After a few minutes, the tutor asked which Shakespeare character we had now acted.
About a third of the class (including me) replied "Lady Macbeth". It was all the non-English specialists.
I asked an English specialist friend about that as I was surprised she hadn't got it. "Oh, we hadn't done Macbeth" was the reply. Thing is, nor had I. I'd sort of picked the basics up. I couldn't quote more than a few words, and I'd be lost if you tried to make me write an essay on how Shakespeare used language to portray this that or the other.
I found it interesting that a narrow in-depth focus on particular bits of English Lit. seemed to preclude a shallow general knowledge of the rest of the corpus. Not sure it adds anything to this, but it's an observation I've found fascinating.
The problem I have with this type of thinking is that the answer is "pretty much anything". We do not know - maybe they would have died out due to over use of the earths resources. Maybe they would have developed intellegence, and sit in the House of Lords.
Incidentally, did you realise that t-rex could - potentially - have seen stagasaurus fossils? That is how long they were around. The possibility that they would last - in some form - a few more seems not unreasonable.
Maybe the world would be a better place if they had.
Yeah, the time gap between the periods Stegosaurus and Tyrannosaurus were extant is larger than the time gap between Tyrannosaurus and the present.
I think the point is "if they'd survived as the dominant land animals". They did in some parts of the world - there are some early Cenozoic birds you'd not want to run into if they were hungry. https://en.wikipedia.org/wiki/Phorusrhacidae
I wouldn't describe birds being a continuation of dinosaurs as a traditional response; when I was a kid it was very much "birds may have evolved from dinosaurs". Now (and admittedly this is also partially to do with the rise of cladistics* as well as new fossil discoveries) it's "Birds are dinosaurs"
*Cladistically, we'd all be fish, if fish were an accepted taxonomic group. This is in fact why fish are no longer considered one.
You still call them fish. They don't stop being a thing because they're a polyphyletic group - i.e. you can't define them as all the descendants of a single common ancestor without artificially excluding terrestrial tetrapods. Coelocanths and lungfish are more closely related to us than they are to sharks or goldfish, but for most non-scientific purposes (and even some scientific purposes) it still works to have a group called fish.
The basic idea is that a taxonomic group should contain all descendants of a common ancestor, or that everything in the group should be more closely related to each other than to anything outside the group. Perches are more closely related to sparrows than they are to sharks, and lungfish are more closely related to sparrows than they are to perches, so fish don't form a natural taxonomic group. Instead they form five or six different groups (lungfish, coelocanths, ray-finned fish, sharks and rays, lampreys and hagfish - the latest thinking is that lampreys and hagfish make up a single group).
An evolutionary grade is an imprecise notion meaning a group of animals who may not be each other's closest relatives but share some features of their common ancestor which other groups no longer do.
Serious answer:
The Deccan Traps supervolcano would still have erupted (indeed, had already started erupting), so an extinction event would likely have happened anyway due to all the gas and ash it was throwing into the atmosphere. Whether it would have been as major an extinction event as the one that actually happened is moot, but it's not as simple as "no asteroid impact = no problems".
Less serious answer:
The world of today would have been populated by highly evolved dinosaurs, as shown in the seminal Theoretical Evolution reference work, 1993's "Super Mario Bros.".
Meta observation:
Is there no thread that can't be turned into a political treatise by the usual suspects? I swear, we could be talking about the return of Superted and someone would find a way to turn it into a dig against Boris/Trump/whoever. It's tiresome. Save it for the politics threads, please.
NEXT!
Wait, what? A political treatise? At whom is this directed?
His book has a positive strap line quote from Dawkins. For what reason I don't know.
Me.
I nearly said ‘Dinosaur Queen Elisabeth’.
Either way I was joking.
My serious answer is ‘nobody knows but it’s interesting to speculate.’
That's brought it back to me. I think convergence is central to Conway Morris's ideas, for example, he argues about musicality being found in different groups, e.g., humans, birds, cetaceans. I suppose this argues against randomness, not sure if it points to g - d. Doesn't he also talk about an "engineering space" with lots of gaps, although I guess this can be seen as a mathematical structure with no intelligence? No doubt Morris would say that structure and intelligence are intertwined.
I interpreted it as being directed at Boogie, since she had actually alluded to the current British PM by name.
It seems to connect with Tegmark's idea of the mathematical universe, but with no God.