The visual appearance of inks is only one clue to their composition.
Sometimes two inks can look identical to the naked eye but further tests may be able to distinguish between them. For example inks can be examined using infra red or ultraviolet reflectance at various wavelengths or using visible light but examining emissions from the ink in the infra red area of the spectrum (infra red luminescence).
Although I agree Yad, Beckster and Marcus are not direct, it's still good to have extra material and have their perspective.
I think especially Marcus' material is really good for life in general, and Yad is famous for his daygame so any stuff from him is worth listening to.
The figure holds a sword or spear in his right hand and a shield in his left.
This figure has an almost triangular body and has facial features of eyes and nose.Furthermore, we perform intersite technological comparisons and conclude that on technological grounds the ‘MSA 1’ of Elands Bay Cave dates back to MIS 6, in agreement with the luminescence dating.We acknowledge current difficulties in building a chrono-cultural framework at a subcontinental scale.As for the main speakers, I absolutely love Alan Roger Currie and David X.Their mindset is so clear, straightforward and makes so much sense!