In short, it's more efficient to focus on a task, than not; Frontier, and Elite by extension simultaneously assume you
do not focus on a task, but design the mechanics to be most effective if you
do. This extends through virtually every mechanic; it encourages compressed repetition, despite this being pretty hard going and not at all enjoyable.
This is equally where Frontier's disconnect is. Despite their mechanics almost fanatical approach to repetition, there's this belief apparently none of us focus on anything at all? Despite endless evidence to the contrary. It's really weird. We've all seen Ed (lovely chap, I've met him and he's really cool) magic in stuff during a stream; because there's simply no time within the 1-2 hours they have, to do this the way
every other player must. An experience is
vastly different, when you short-circuit repetition barriers (that obviously have been added for some reason or other).
Credits probably weren't meant to be that much of a barrier (hence why the game is a huge time-
and-credit sink) but has
become one due to the plethora of (now very expensive) options and Frontier's somewhat militant approach to wealth creation (which has now been absorbed by a portion of the player base who also protest this, at great length). This creates a need for non-trivial cashflow - and the obvious conflict results; because a true sandbox would not give one proverbial if all you wanted is credits (neither should it's players) but boy do we know the answer to that one. Of course, the answer is "just don't do that?" but this is daft on the tail of "it's a sandbox, m8, it's up to you".
This is true, to an extent, for engineering as well; a value add and extension of capabilities, that's become a bit of a barrier. The game really shouldn't get in the way of folks who just want to focus on a goal (and should really facilitate that) just as it should for those who value the journey more. It does get in the way though. And sometimes delights unnecessarily in doing so. Which doesn't make it at all enjoyable.
Versions around 1.3-1.4 may have been bare as hell, from a mechanics standpoint; but the game simply did not get in the way, didn't overly care how you played, and wasn't overly obsessed about your bank account. My, have times changed.
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Anyhoo - hope you find your mojo WR3ND; vulture is a fine ship - ignore the h8ers. And if a little company would help? I have a beginner account who needs some mats, so feel free to reach out to 'Cookie Clicker' in game (yes, I am a hilarious and also very stupid guy, love me).