I'm not well versed in the cold war, or anything in history for that matter, but I really love the subject, but the cold war always perplexed me. Did they hate each other just for the difference in economic system, or was it something more? And if it was just economic system why did that cause almost half a century of competition, and wars? Please correct anything i have said that is historically inaccurate. Thanks!
Greetings! I think you'll find that the answer to this question (which itself, if I may be so bold, is a tad "reductionist") is far more complicated and this thread on the American concern with Communism might be a great place to get started. In essence, the Cold War rivalry mainly stemmed from geopolitical concerns from both Washington and Moscow over the other government attempting to impose their system (or exert a disproportionately large amount of influence) over other nations.
A LOT more can be said on the matter of course, regarding economic, sociopolitical, and ideological debates on the rivalry, so I would recommend a good bit of prior reading so you can ask a more specific question on the causes of the Cold War.