And there lies the problem with just replacing cars with buses
That’s not what I’m saying. I’m showing the idea in the OP (exclusive streets for “public” urban transport) is old as fuck and yet those money hoarders are reinventing it in a worse way. That’s it.
If you want my actual take on what’s the “best”: I do not think replacing everything with buses is sensible. I think buses and metropolitan trains are a good backbone, but there should be a mix, including direct transportation (e.g. taxi, regardless of being self-driving or not).
So congrats for building a straw man out of assumptions, and then beating it up. *yawn*
Now factor in that most people are going to need a vehicle in the US […]
Simply put, major bus network don’t work in most of the US […]
Emphasis mine. I’m not from USA, this comm is not about USA, and I’m clearly talking in a country-agnostic way, even if the pic I shared happens to be from my country (and city).
So, lemme be a wee bit blunt: why do you think I bloody care about USA enough to discuss the particularities of transport there? I don’t.
If USA or Kazakhstan or Nigeria or France or whatever have additional challenges against sane public transport, this perhaps warrants its own discussion thread. But it’s certainly not an excuse to narrow a discussion down from “everybody should be able to chime in” into “HOW DO PEOPLE DARE TO NOT TALK ABOUT MY COUNTRY?”, okay?
Not further wasting my time with you.













To be clear, since the paper is a bit messy, here’s how they calculated a few variables.
Handedness index, HI: pick an individual. Check how many of the tasks they completed with the right hand (R) vs. the left hand (L). Then plop it into the formula (R-L) / (R+L).
So for example, if Alice used her right hand 60% of the time for any given task, R=0.6, L=0.4, HI(Alice) = (0.6-0.4)/(0.6+0.4) = +0.2.
Now let’s say Bob used his right hand 20% of the time. HI(Bob) = (0.2-0.8)/(0.2+0.8) = -0.6. Note the sign matters.
Mean handedness index, MHI: it’s mean, just like me. *ba dum tss* Just sum this stuff up and divide by the number of individuals. e.g. the MHI for the whole population of my example above would be (+0.2 -0.6)/2 = -0.2. So righties increase the score, lefties decrease it.
Mean absolute handedness index, MABSHI: disregard signal, then mean. The MABSHI for the population above would be (|+0.2| + |-0.6|)/2 = (0.2+0.6)/2 = 0.4. So stronger preference towards one hand (whichever it is) raises the score.
My personal take:
They found correlation between brain size, arm:leg ratio, and handedness… and that’s it. The title implies a cause (“why”), and that it has to do with right handedness, but both things are AFAIR (as far as I read) absent.
I think this is all a big red herring, mind you. We humans coördinate the usage of both our hands for a lot of tasks, where each hand performs a different movement:
you get the idea, right? I think handedness encourages this sort of coördination, and it’s essential for more complex tasks other primates don’t typically perform. As such I don’t think it’s necessarily correlated to every instance of tool usage, as in the TOOL variable, but to specific tasks.