No, that’s a mistake. Incredible how many mistakes one can make in a simple derivation.

Thanks for pointing it out.

What about this is “vaguely whale-looking”?

Observe the identities

a / b = a × b^(-1)   (A)

sqrt(a) = a ^ (1/2)  (B)

a^b × a^c = a^(b+c)  (C)

(a^b)^c = a^(b × c)  (D)

and derive

  2 / sqrt(2)
= 2 / 2^(1/2)           (B)
= 2 × [2^(1/2)] ^ (-1)  (A)
= 2 × 2^(1/2 × (-1))    (D)
= 2 × 2^(-1/2)
= 2 ^ [1 + (-1 / 2)]    (C)
= 2 ^ (1/2)
= sqrt(2)               (B)

Predatory publishing is this shit. It’s a bastardized version of the open access movement that gained traction at the turn of the millennium.

In a nutshell: Instead of having readers pay for an article, publishers take money from researchers to publish the article. Reading it is free for everyone. Publishers are now incentivized to publish as much as possible, with no regard whatsoever for quality. Everyone with two grand on their hands can publish any article.

I never knew that estrogen and testosterone are so similar. I also didn’t know that there is not one estrogen molecule, but that estrogens are a molecule class.

Thanks, OP!