What is the limit of human memory?

I am currently a high school student and have grown curious at what the limitation of memory storage in the brain might be in humans.

Information is coded genetically and stored in the brain, but is there a limit to how much information a person can retain without forgetting?

In high school I have taken a broad courses in biology, chemistry, physics, calculus and more. I wonder if my desire to learn and keep moving forward will be hindered mentally by the intrinsic aspects of memory (if they do exist)?

• You may want to see this question which is similar to yours (but I think not exactly a duplicate) - this question talks about actual "memory" in terms of connections of neurons in the central nervous system... biology.stackexchange.com/q/19614/16299 – Vance L Albaugh Jul 28 '16 at 22:28
• @VanceLAlbaugh Yes I saw it, but there are some memories which can't be exactly recovered after some time. – Sigma6RPU Jul 28 '16 at 22:38
• (1) Information is coded genetically and stored in the brain this sentence sounds really weird and suggest misunderstanding of what genetics is. (2) You might want to study a bit further neuroscience with an online course to see how much you like it. A short introduction can be found on Khan Academy here under The neuron and nervous system – Remi.b Jul 29 '16 at 0:41
• @Remi.b: I think it's referring to new studies that are showing that memories are encoded into the chromosomes present in brain cells. Which makes a lot of sense, since why create a whole new replicative storage system when you already have one? Basically, the genetic material appears to be 'hijacked' and used for local storage instead of reproductive communication, since brain cells won't participate in reproductive communication in any case. It's not 'genetic memory' in the Goa'uld sense, but 'genetic memory' in the 'DNA data storage' sense. – Williham Totland Jul 29 '16 at 17:52
• – Arnon Weinberg Jul 30 '16 at 1:43