Oblivion is something that is inevitable, but always ignored. I guess it's ironic about how oblivion we are to human oblivion. There will come a time when we are all forgotten. Of course people such as Einstein and Walt Disney will be remembered much longer than you or I, but in due time, our present will be a distant past. Our history will impact the future, but not much of it will be remembered.
It is fate that our history will only last for so long before it becomes forgotten. We do not know what is going to happen in 2 minutes well a known 2 years, 20 years or 200 years. We may have some idea, but nothing is certain in the future. And so, in the few short years we are able to call our lives, we try to make an impact to help the future; to leave our mark. But how long will that mark last? A foot print in concrete only lasts so long. The concrete can be worn down over time that the marking disappears, or it can be ripped up completely. Although something seems like forever, it can never be forever. Forever doesn't exist. It's a made up concept in our minds and in society that we continue to use.
However, the important thing with Oblivion is that not everyone needs to know about the impact you make. In 300 years from now people do not need to be studying you in school, to know that an impact has been made. The people before us in the 19- and 1800's all made an impact for you today and although their names are not commonly known in every household, they made their impact despite human oblivion.
In the words of Hazel Grace Lancaster - "And if the inevitability of human oblivion worries you, I encourage you to ignore it." - Fault In Our Stars (Page 13).