I have been using LaTeX (with pdfTeX) for 20+ years now – to be honest I never bothered to understand the differences between the different TeX engines – here is an excellent article by Graham Douglas explaining the ins and outs of the TeX engine(s).
… the article also features Overleaf a shared TeX environment … sweet!
Some papers have somewhat weird starting points – this one had an awesome starting point – Lake Louise (Canada):
In a little suite we (Joe Johnson, Ulf Böckenholt, Dan Goldstein, Jay Russo, Nikki Sullivan, Martijn Willemsen) sat down during a conference called the ‘Choice Symposium‘ and started working on an overview paper about the history and current status of different process tracing methods. One central result (why can’t all papers be like that) is the figure below where we try to locate many process tracing methods on the two dimensions: temporal resolution and distortion risk (i.e., how fast can a method measure a process and how destructive is this measurement).
Schulte-Mecklenbeck, M., Johnson, J.G., Böckenholt, U., Goldstein, D., Russo, J., Sullivan, N., & Willemsen, M. (in press). Process tracing methods in decision making: On growing up in the 70ties. Current Directions in Psychological Science.
Ah – everybody was trying to find a path all the time: