system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] The Jedi order was destroyed by Palpatine, a great sith lord who understood the Force. Why were the Jedi so pathetically weak in their use of Force?
gpt
Firstly, Sidious was extremely powerful in the Force.  He represented a culmination of the constantly-improving Sith Order, the final product of the Rule of Two.  Sidious completely outclassed almost every single Jedi, with only Yoda being able to stand on somewhat even footing against him.  

Secondly, in contrast to the stagnant Jedi, the Sith were constantly improving.  Sidious could wield powers that the Jedi had never even thought of, much less prepared for.  The Jedi had spent two thousand years training to refight the last war.  Even Yoda was using antiquated techniques against a very modern foe, which is why Sidious could simply work around Yoda's blind spots.  

So, basically, think of it like a meticulously engineered sports car from 2017 that's got a bunch of additional gadgets added to it to make it even faster and better, being compared to a fleet of Ford Model Ts.