mostly, yes @CaptainBohemian -- look up mathjax tutorials and just copy and paste code for matrices, integrals, etc. The code is very similar to LaTex :)

time is also a big trouble

and actually the biggest trouble

not only in gravity theories but also our calendar practice

@CaptainBohemian Note that in a few SE sites (e.g. Electronics.SE) you have to escape the dollar signs with a backslash "\$...\$". Instead, Math.SE and Physics.SE work normally.

An extract from todays climlist (a list for job ads in climate and other climate-related announcements) illustrates the problematic state of contemporary academia. Senior researchers rarely have time to do science, in particular if they are employed at universities. Teaching, supervision, administration, proposal writing, takes up most of the time. To do the actual work, they hire PhD students and in particular postdocs.

Postdoctoral experience is essential for any permanent position in academia, but the number of postdocs hired is entirely dictated by the science that needs to be done and in no way related to the requirement to fill positions for which postdoctoral experience is a necessity. Nor does postdoctoral experience have a lot of value for positions in industry.

The consequence: ever-increasing numbers of scientists who chain postdoc after postdoc, in some cases until retirement, forever on time-limited contracts, often having to change cities or even countries every 2–4 years. Some call it the “Profzi scheme” but that term suggests professors are to blame, which they aren't.

Short of governments/funding agencies reinstating rolling research grants, is there any way out of this double-bind between the research that needs to be done and the long-term interests of the researchers doing it?

(Closed as primarily opinion based and too broad) ;-)