Just a small reminder - the Logistics Curve was
invented to match real life growth:
"The logistic function was introduced in a series of three papers by
Pierre François Verhulst between 1838 and 1847, who devised it as a model of
population growth by adjusting the
exponential growth model, under the guidance of
Adolphe Quetelet.
[2] Verhulst first devised the function in the mid 1830s, publishing a brief note in 1838,
[1] then presented an expanded analysis and named the function in 1844 (published 1845);
[a][3] the third paper adjusted the correction term in his model of Belgian population growth.
[4]
The initial stage of growth is approximately exponential (geometric); then, as saturation begins, the growth slows to linear (arithmetic), and at maturity, growth stops."
en.wikipedia.org
So anyone that claims a Logistics Curve does not match reality does know what the heck they are talking about!