[AntonioLao]

A Lanthanian-138 being is a silvery metallic inner transition radioactive being. Its half-life is about 100-billion years. If there was one in the distant past of 30 billions years then it would have witnessed the birthday event of the big bang formation since the present universe is merely less than 14 billions years old. Its atomic mass number is 138. The number of protons for lanthanum is 57, this means that there are 81 neutrons inside each nucleus and its total space-time charges would be 57( 11, 5 ) + 81( 7, 7 ) + 57( 1, 7 ) = ( 1251, 1251 ). This clearly violated the principle of even number conservation. Therefore, even a lanthanian being will not live forever.

Because of its longevity, the lanthanian civilization has all the time in the multiverse to set the foundation of many lesser beings known as the lanthanides series: cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. Out of these 14 subcultures, only Samarium-147 had a comparable half-life of 100-billion years with lutetium come in second at 40-billion years.

Lanthanides properties vary very little which make it very difficult to isolate them into individual identities. However, chemists were able to put them into good uses such as absorbing high-intensity radiation, their oxides compounds that provide phosphors for TV screen and computer monitors. They are used in movie projectors, high intensity searchlights, lasers, and tinted sunglasses.

A googol years from now, it is probable that there is a Lanthanian and a Samarian having a serious discussion as to how they will spend the remaining years of eternity together. If there are no cosmic accidents then surely the Samarian being will outlived the Lanthanian being simply because its half-life is a little bit longer.