Well, here we are beginning another Monday, and I’m writing this post—again—on the mini lapcom.

I say “again” not because I am writing this very post for a second (or more) time, nor because the last post I did was written on the lapcom, because it was not.  I mean “again” in the sense that last Monday I wrote my blog post on the lapcom.  I also did so on Tuesday and on Wednesday last week, but I cannot yet say that I will do so tomorrow and the next day.  I won’t even say “barring the unforeseen”, because I can rather easily imagine, and therefore foresee, situations in which I will not write those blog posts on the lapcom.

Of course, I also cannot predict whether, like last week, I will write Thursday’s and Friday’s posts on the smartphone.  It’s not that unlikely, but I don’t know ahead of time whether I will write them on the smartphone or the lapcom.  I could make predictions, but I think anything deviating terribly far from 50/50 would probably be very much a rectally sourced prediction.

I will say, though, that if I do write blog posts the rest of the days this week—which will include Saturday, alas—I will almost certainly write them either on the lapcom or the smartphone.  How’s that for a bold prediction?  It’s not a certainty, of course, but then again, pretty much nothing is.  It’s getting into the high 90 percentiles though, I’d guess.  I’m not skilled enough at probability/decision theory to get much finer in my estimation than that.

Anyway, that was about 250 words of utterly pointless drivel, wasn’t it?  It’s quite odd how much and how quickly I can write about more or less nothing of significance.  Mind you, from a certain point of view, nothing is really of significance.  Also nothing is of significance.  I mean two different things by those two different uses of the same words.

The first means that there is almost nothing in the universe that, in itself, is significant (cosmically speaking, of course—on different scales, significance has different requirements).  No individual, localized thing or fact can matter much on the largest scales.  On the other hand, nothing—the vacuum, absence, whatever you want to call it—is significant.  This partly refers to the fact that the universe appears to be expanding at an accelerated rate, and this seems to be due to the vacuum energy, the energy of “empty” space.  A uniform energy density in space creates a negative pressure, which creates “negative gravity” in a sense, and that drives an expansion of spacetime.

The nature of this vacuum energy, or cosmological constant, is definitely significant in that it will determine, almost solely as far as we can tell, the future fate of the universe.

Of course, the term “vacuum” may be somewhat misleading given its ordinary usage (quite apart from when one refers to the household appliance).  The vacuum is never really “empty” despite what the usual meaning of the word is.  It’s full of all sorts of quantum fields as well as the gravitational field that is spacetime itself.  The vacuum is just when these fields are in their lowest possible states/energy levels*.

There’s also the famous Higgs Field, which actually is one of the quantum fields, but it is interesting in that it is a scalar field, meaning that it has magnitude at every point but not direction (like a map demonstrating local temperatures on Earth’s surface, as opposed to one detailing the wind, which will have magnitude and direction).

If this seems a peculiar distinction to you, think of the electromagnetic field, which has both magnitude and direction at every point.  It’s actually a little more complex even than just that, because of course, electricity and magnetism are two aspects of the electromagnetic field, but each one of them is a vector field (with magnitude and direction) which interacts with the other, so the combination of them is something more involved.

Also, when energies are high enough (changing the way the Higgs field interacts with other fields), the weak nuclear force and the electromagnetic force turn out to be part of the same thing, called the electroweak force.  And, of course, there is the question of whether all the fields are really just aspects of some “higher” field or structure.

This would be some form of “unified field theory” (not to be confused with GUTs, or “grand unified theories”, which are less grand and less unified than unified field theories).  Of course, we don’t know that there is a unified field.  There may not be.  There may just be a minimum number of fields that cannot be further reduced.

If M-theory (AKA string theory) is correct, then yes, there is a unified form from which all fields derive their character thanks to the shapes and resonances of their vibrations in high-dimensional spaces.  On the other hand, other versions of quantum gravity such as “loop quantum gravity” leave gravity (AKA spacetime itself) as a separate kind of field, composed of tiny, tiny parts (the “loops”) knitted together.

At least some versions of this theory have been disconfirmed, however, because it predicts a very, very slight difference in the speed of travel of electromagnetic waves depending on wavelength, and light from extremely distant quasars has been tested and found to be uniform in arrival time (based on variability in the quasars and specific catastrophic events, if memory serves) from wavelength the wavelength, even to tiny parts in billions of light years traveled.

Okay, well, that’s surely enough trivia for anyone early on a Monday morning.  I wish I didn’t have to work today, but then again, I wish I didn’t feel like I have to do anything.  But I do feel that way.  I guess it’s probably better than being inert.  Without a goal or goals—terminal, instrumental, or otherwise—there is no action.

You can call it a “drive” instead of a “goal” if you prefer.  That may be a more accurate term, since nature doesn’t act in a teleological way (outside of thinking minds) but instead generates drives/urges/impulses, some of which lead to increased genetic reproduction and some of which lead in the other direction.  Over time, the former are the ones that tend to accumulate, for what are probably obvious reasons.

Enough.  I already said it was enough, didn’t I?  Anyway, I hope you all have a good day.  And remember, if you tend to come to this blog via other social media, you can subscribe to it using your email, and then you’ll get emails sharing every new post with you directly.

Take care.

*There is also a thing called a false vacuum.  Spacetime itself could be in such a state, if the vacuum energy is capable of tunneling to an even lower energy level than the one at which it currently resides.  This would not be a good thing for the current inhabitants of the universe, but at least they would never know it if the drop-down happened, because everything that currently exists would be erased at the speed of light.  The universe as a whole would even be affected, but it wouldn’t be endangered per se.