[Eddie Mars (OP)]

Past simple or Present perfect?

John did ...
or
John has done ...

- - -

 - How does the radio work?

 - Imagine a cat, the head of which is in London and the tail is in Paris.
   When you pull the tail in Paris, the head goes "meow" in London.
   Now, imagine that without the cat.

- - -

Let's imagine that the observer/witness uses Past simple tense.

/example

/There are four people: A, B, C and D.
/A and B are in the room, C and D are not.
/B sees A leaving the room.
/B says to C "A left the room". (past simple tense, B is an observer/witness)

/C says to D "A has left the room". (present perfect tense, C is not an observer)
/D asks C "When has A left the room?" (present perfect tense, D is not an observer)
/C responds "A has left 10 minutes ago". (present perfect tense, C is not an observer)




Now,

let's imagine the negative of that rule (in every way) is being applied in English.

/the use of Past simple and Present perfect in English
/"in a nutshell"

Joey, Friends, "Quotation Marks"

= = =

Father Dowling Mysteries, What Do You Call a Call Girl Mystery, S1.E3

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Natalie Imbruglia - Torn (Official Video)

the end

[Eddie Mars (OP)]

/some unintentional notes


Assembly Basics: The Language Behind the Hardware

1:23 min.
Basic Components

...;

...;

...

Instructions (verbs in imperative mood); Operands (indirect and direct object); ...

-

2:39 min.
CPU Registers:

General-purpose;

Special-purpose;

Status-purpose. (the state of the doer)


= = =


So scary, every language has a vocabulary (a lower level syntax) and a syntax.

syntax (n.)
 https://www.etymonline.com/search?q=syntax

syn-
https://www.etymonline.com/word/syn-

-

system (n.)
https://www.etymonline.com/search?q=system

syn- (syn-, con-, ... are everywhere)
...

-
...

= = =

Mathematics is the art of giving the same name to different things.
Henri Poincare


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No Doubt - Don't Speak (Official 4K Music Video)