GotoTom2

President Trump was born on 6-14-1946. He is the 47th and 45th president of the USA, a media personality, Star of "The Apprentice" on TV for 15 seasons, successful businessman, and a member of the Republican Party.

President Trump works all the time. He generates so much content, I have to create multiple webpages about him.

7-4-26

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12-2-25

President Trump said, "in the future you may not have to pay income tax".

11-28-25

The observable universe—the portion from which light has had time to reach us since the Big Bang—is a sphere centered on Earth with a current radius of about 46.5 billion light-years, for a diameter of roughly 93 billion light-years. This figure accounts for the universe's expansion: light from the earliest moments (like the Cosmic Microwave Background, or CMB) left its source ~13.8 billion years ago, but the space it traveled through has stretched dramatically since then. The light-travel distance alone would suggest only ~13.8 billion light-years, but expansion inflates the current distance to ~46.5 billion light-years in every direction.

Why the boundary feels mysteriousThere is no physical "edge" or wall at the limit of the observable universe. It's a cosmic horizon set by the finite speed of light and the finite age of the universe (like how Earth's horizon limits what you can see on the ocean, even though more ocean exists beyond it). Beyond this horizon lies more universe—possibly vastly more. Leading models suggest:

The full universe could be infinite (especially if space is flat on large scales, as CMB data strongly indicate).
Or it could be finite but without boundaries (e.g., like the surface of a higher-dimensional sphere).
Inflation theory implies the entire universe is at least hundreds of times larger than the observable part, possibly by enormous factors like 10^23 or more.