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I think you are putting a bit too much faith in human cognition: "when you put a person through 30+ hours driving course, they don't suddenly lose the ability to recognize trees or faces". They do. they get tired and their reaction time slows down. they get drunk, they get distracted. Humans do exactly this - unpredictably lose the ability to recognize and react in a timely manner.

perhaps you mean execution quality? speed doesn't average out. if a broker takes 170 milliseconds to execute on average - that's an eternity.

It's hard to know if execution quality averages out. it's hard to interpret execution statistics such as the ones published by Schwab.

Well, you are making pretty general statements. "With humans we know - from thousands of years of experience - that people generally don't go crazy when taught new things"

they do crazy things all the time. Drink and drive, hijack planes and run them into mountains ( germany, malaysia recently ), text and drive, etc. etc. This discussion needs to be based on comparing actual data. Let's get there and see

humans also fail for all sorts of reasons that are unpredictable. if, for example, Waymo, demonstrates properly calculated lower accident rates with their cars than with humans, then at some point you have to agree with what the data says. We aren't there yet, but that doesn't mean we can't get there

"Would you want your car or an aircraft you're on piloted by neural net the actions of which can't be explained?" Actually, if the net is properly trained to reduce overfitting and is shown to work on out of sample data - yes. On the flip side of this argument, a person can do something inexplicable and invent a plausible explanation after the fact that seems and feels safe and correct, but is actually wrong.

I don't know, but the key is to properly account for the biases in responses of those who do answer. Substantial percentages of people do answer surveys. Don't make the mistake of thinking along the lines of "i would never answer one, therefore nobody would"

correct, and that's why surveys need to be as scientific as possible in order to avoid various biases that skew the results. hence qualtrics and not surveymonkey for serious survey research.

there are several issues at play: rules around trading securities and securities fraud. EtherDelta broke certain rules and that/s why the founder got fined about 400k in total. You are correct that EtherDelta wasn't a fraud or a scam - and that's why there is no criminal proceeding, no accusation of securities fraud.

right, that's the main point. Why switch to POS at all? Suppose for a second ETH POS solution works as advertised. really fast and scalable. Then, there will be economic activity as a result of that speed and scalability, that would not have happened otherwise. At least that's the idea - may not ultimately work out.

curious, what the downvoters are disagreeing with specifically in this comment.

"The issue is that you need to lock up money for PoS in order to mine it. That has a cost as you are forgoing interest on lending that money to an actually productive enterprise that is creating value. The net result is that funding and investment becomes more scarce because private investment is "crowded out" by people simply staking their Ethereum. This is the same harm caused by too much government debt "crowding out" private investment"

This is zero sum thinking. Yes, people will lock up money, which could have been invested elsewhere.

But you have to take into account the activity that happens on the chain as a result of POS, which itself will be productive presumably.

Thus the capital locked up in POS will be invested productively - because the activities enabled by POS themselves will be productive.

Of course, if there is nothing new that you can do as a result of POS - meaning, without POS you can already do all those things, then indeed there is no reason for POS. But the idea here ( which could be right or wrong ) is that POS will enable decentralized computation that would not happen otherwise.

EDIT: to downvoter: you can't say that locking up coins detracts from productive investment without evaluating what the chain ends up doing as a result of switching to POS. I mean, if you think that nothing useful will happen on a POS chain, that's a valid argument, but that's a different argument than simply worrying about locked up coins

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