A time capsule is a historic cache of information or objects that represents something important for the person that put these thing on it. Therefore, this capsule is developed with the intention of being opened or accessed at a future date. I think the best thing to put inside a time capsule is a letter because in a letter you can write any feeling, any thought and anything you want to remind in the future.

Also, it is very emotional to read a letter after many years of had been written it. Writing a letter is not easy and more if we are talking about a future letter, you must think for the future and what are the things you wished you achieve by that time. To conclude, i would like to write about myself but also leave a moral to the world and ways to improve our world for people who will find this letter.