Being incapable of distinguishing between the concepts past, present, and future, is what keeps the other animals from accomplishing long-term goals that benefit future generations. Examples might include; contributions to science, architecture, government planning projects, infrastructure, artwork, technology, etc.
For animals, it's instinctive to always be 'in the now' - it's all they are capable of. For a human person, it requires work to be that ignorant. One example of that ignorance would be the rejection of employment, since you have to wait two weeks for a first paycheck. Building, buying or renting a home requires planning - so that's out the window too... There's no reason to go to college or further your education, because that requires you to comprehend chapters 2, 3, 4 and 5 which all come in the future, after chapter 1, which is *unthinkable*... And once you get to chapter 5, you must forget chapters 1, 2, 3 and 4, because those were from the past.
...In the end, I view it as degrading to the human person to try and convince others to stop working, stop building, stop going to school, and stop learning, considering that our weak, slow-running, hairless bodies evolved to be a species reliant on planning and remembering what works.