To complicate matters, not all iron should be considered equal per units mass, some forms of iron are considerably more bio-available, and in general the forms provided as supplement on cereals in are on the low end of bio-availability.
This. I remember my biochemistry professor in college grinding up a bowl of cereal into a fine powder and then using a magnet to yank all the iron out. Fine iron powder like the kind present in cereals is nowhere near as bioavailable as iron complexed with proteins (e.g. from red meat). You basically just poop most of it out. Ask anyone who has had an iron deficiency. It is ferociously difficult to take enough supplements and change your diet enough to correct a severe form of it.
Angular 4/5 is simply the continuation of Angular 2, so it's more like 2/4/5. The Angular router had been up to a major version 3 so they skipped Angular 3 as a whole in the interest of keeping all of the parts of Angular in version sync.
Starting with the latest version of Angular is generally the best idea, though you may be tied to earlier versions depending on what other modules you want to use. For example, the npm version of ng-bootstrap is still tied to Angular 4 (though one can easily build one that does from the github repo). I would recommend starting with ng-cli as most (older) books will start you off with some other build system (e.g., system-js, an older webpack plugin).
Exactly that, though, the placebo effect of interest would only be induced on people who haven't tripped.
That aside, and of course accepting that states induced by psilocybin and other substances are unobtainable by any other means, you are still nowhere near saying that these same substances can _reliably_ be used to treat depression. Furthermore, this course of treatment also needs to _reliably_ not make depression worse or trigger other types of anxiety that could trigger other medical conditions. Clearly, exactly what a aperson does under the influence of these substances can remarkably impact the results of the studies, so the techniques being used are being judged in these experiments just as much as the substances being used.
One shouldn't be dismissive of these studies, but also one should understand that the techniques used aren't the end-of-the-line in terms of potential these substances may have. on the other side of the token, we must also tread carefully. We must first do no harm!
This study is attempting to show that psilocybin is effective in treating depression, not effective in inducing a 'trip'. For patients who have never experimented with psychotropics, there may be a placebo effect when they are told they are given a psychotropic substance. While I agree that psilocybin and other similar substances can induce powerful mental states unreachable by other means, it does not follow that there exists a clinical path by which these drug-induced states can be used to treat depression in a reliable way.
Evolution doesn't code for just optimal. During the time that we
were actually evolving, there existed pressure, for example, to
optimize our use of the small amount of food that we had access to,
optimizing to be as incospicuous during the dark hours, etc. Signaling
processes weren't optimized for access to post-scarcity (in the
first-world) availability of sugars, proteins, and fats; sleeping for
as long as we do isn't optimal at all (some people have genetics that
improve on this, though), and not to mention that the very nature of
genetics will definitely produce humans that are sub-optimal in ways
that that won't necessarily lead to sterility but will no longer be
removed from the gene pool of the species.
I'm not claiming that caffeine will make you super-human but the use
of substances like these that may have decreased survivability in
pre-historic years (e.g., due to increased metabolism, induced bowel
movements that decrease nutrient absorption) may augment several
aspects of human cognition (and worsen others) in a way that is
towards optimal, for say, coding but suboptimal for, say, creative
writing (I don't claim this is true, just provide this as a possible
example). Many contemporary college students can definitely attest to
both the positive and negative aspects for drugs such as amphetamines
(e.g., Adderall) in a manner that one could describe (though
misleadingly) as superhuman.
I do agree that use of many of these substances can have seriously
deliterious effects with prolonged use, but all studies I have come
across refute this possibility for caffeine.
As with most renewables (e.g., wind, solar, wave), I would imagine that just because production of energy outpaced its consumption on a given day, the same may not be true on any other given day.
It was not clear if energy capacity has recently increased but the article did state that last year on average it produced 39% from wind. That being the case, focusing on conservation seems like a good idea still...
Conkeror is a standalone browser (not to be confused with KDE's Konqueror) I've been using with a similar mission, though I look forward to trying this out and take advantage of FireFox's technologies (debug, pdf.js integration, etc.)
Conkeror is so much Firefox, that you can easily fit the former with most things that work with the latter, including the built-in PDF extension. As a matter of fact, the Conkeror "binary" is just a shell script that launches Firefox or xul-runner with the proper config (something like: firefox -app /usr/share/conkeror/application.ini).
Also worth noting is that Conkeror was the original inspiration for vimperator (and thus for uzbl, dwb, luakit and the likes - all very splendid and worthwhile projects), and that this message is written on an editor spawned by conkeror (which, surprisingly enough, happens to be vim).