For me there is one thing that works so much better than anything else: new goals. To the end of my PhD, that meant to just suckt it up and finish the work despite low motivation and frankly also workweeks far below 40h.
Later in life, motivation came naturally, I worked more and I am really happy with the outcomes. Sorry, that this is no advice that is immediately helpful, but I hope that it can be reassuring that streaks of low motivation as a student are kind of "normal" and not necessarily something that needs complex solutions.
If I think of myself as a user, that is spot on for information/entertainment, but far from the truth for products. The most extreme examples being everyone using "$THING Wikipedia" but nobody I know using "$THING Amazon" in Google search
How exactly could this be done reliably? With shorts you have to commit to a timeframe for not only finding evidence to reject the claim but also for the news to break and convince other investors.
Meanwhile you can be targetted by financial actors that play your positions on the stock market, at times even disregarding the atual company behind it. Further you have to mind monetary policy. If faith in the stock suffers compared to other stock but the overall market just goes up and up, your shorts have a problem again.
Personally, I have no informed opinion on EmDrive, but I have been very pesimistic about companies in the past and I am about some right now. Still, I do not think that shorts are anything appropirate for me. I'd much rather buy competitior's stock than burn myself with shorts or waste hundreds of hours getting into the financial market that I could also use to create value in my actual job/profession
There may be a lot of uncerntainty in Data Science and ML projects. However, recently I started feeling like I actually have it better than someone from pure software engineering sides of things:
For either, there is often a function from time spent to quality. 100% perfection is basically impossible and before that the function increases very slowly, seemlingly logarithmicly.
For SWE, expectations are often close perfect solutions. Too greedy effort estimations cause a lot of trouble. For DS/ML, however, perfect is usually off the table and this fact is widely (not universally though) accepted. When it is accepted to give estimates in this way, suddenly there no harm from being quoted on it and I really don't mind to give estimates anymore, where I just make a guess at a good 80/20 point. If I am wrong with that point, chances are nobody on the outside/higher up ever knows.
This may be different in domains where very clear targets have to be met (e.g., "self driving cars that pass lawmaker's requirements for use on the streets") and then I'd guess it is a true nightmare.
Like this, I never felt overly pressured by ML/DS deadlines over the last years. Some things were great successes, sometimes the quality wasn't great enough and projects were stopped or customers left. But there never really was a case where anyone thought that working extra long might have been an option to meet higher expectations.
I don't really have a solution for SWE, I don't really see how one would sell something like "I can do it in X time and it will only crash / stop working / make mistakes / become too slow / have vulnerabilities so often. More time will lead to fewer problems". This just isn't what's expected. But at least for complex systems and security vulnerabilities, I'd argue it is actually quite true. Guarantees for 100% perfection just aren't realistic. Avoiding the most obvious pitfalls is done rather quickly and the more time spend, the more is needed for further improvements.
I really wonder about the charging infrastrucuture. I guess it is doable and a necessary transmission, but I am a bit afraid it may be the next thing some countries are sleeping on.
As a German, there are serious subsidies for home owners to install one right now. However, I just moved into a new rental apparment and visiteted quite a few places that were all built in 2020. All of them had very nice parking spaces allocaed to the flat, but zero wallboxes for the entire appartment. I also looked into buying a flat and often it would have been difficult, sometimes even impossible to install one on my own behalf wihtout checking with all other buyers (and these kinds of changes often lead to tedious legal fights, afaik). The place I'm moving to doesn't have one either, but the ladlord will install one, once needed. At the moment I still have a car with a diesel engine and no plans to change soon(I go almost everywhere by bike, even have a different one for rainly days and to carry groceries, and do 0-2 longer trips per month and ~1 very long trip for vacation per year, bike + diesel seems to fit that quite well) soon, but the next car will be electric i guess
To make things worse: The overall power comsumption should not be too much of a problem, but if almost vehicle was electric and charged where people live, the power infrastructure could be in serious trouble. If improving it in remote areas goes anywhere as well as FTTC/FTTH internet, we're headed for disaster. There are a lot of interesting ideas, e.g. decentralized batteries within people's homes and renewables. But if all the focus is on changing the cars on the road, I have little hope that other transitions will be quick enough
Later in life, motivation came naturally, I worked more and I am really happy with the outcomes. Sorry, that this is no advice that is immediately helpful, but I hope that it can be reassuring that streaks of low motivation as a student are kind of "normal" and not necessarily something that needs complex solutions.