"Don't you get bored solving it again and again?" - this is one of the most common questions every single cuber face in their journey. Today, I will try to find a logical answer.
Boredom is an emotional and occasionally psychological state experienced when an individual is left without anything to do, is not interested in their surroundings, or feels that a day or period is dull or tedious . It can occur for so many reasons. The most common reason is to do something repeatedly with a predictable result. Suppose, every day, you go to school on the same route for 20 minutes of walking. This will be fun for the first couple of days but after around one week, things will change. You will get annoyed if you don't have anything to do or think while walking.
"Some things are fun the first time you do them and then not so much the next." - Chris Gardner, The Pursuit Of Happyness 2006
Basically, the previous question appears based on this fact of repetition. So now, let's start with the main explanation.
The 3x3x3 Rubik’s cube has approximately 43 quintillion (43,252,003,274,489,856,000) combinations. That means, if you neutrally scramble it, then the probability of getting the same scramble twice in a row will be 4.624 × 10-18 which is so near to Zero that calling it impossible will not be a great mistake. That is why every single scramble is new. And a new scramble means new adventure, new experience. Even every solve time is also new. So usually, of this newness, cubers don’t get bored solving a Rubik's Cube repeatedly. They can cube forever.