[S2F MODEL MODIFICATION STEP-2] 🧵/1- As the next step of my effort to modify the #S2F model, I have decided to introduce a new term; Apparent S2F or

[S2F MODEL MODIFICATION STEP-2] 🧵/1- As the next step of my effort to modify the #S2F model, I have decided to introduce a new term; Apparent S2F or