Kind of fun make-believe stuff.
Feasible and possible. Interesting, but make-believe.
And if anyone thinks the above comment is harsh or ignorant, they admit it. From the article:
“The study was so thorough that the team, made up of 23 scientists from around the world, was able to speculate on the appearance of this hypothetical ancestor inside and out, from its brain and inner ear bones to its ovaries and even what its sperm may have looked like”
Frankly, sperm all look alike !