Perpetual assets are illegal in many countries but remain still very unconstructed in this world. Knowledge and wisdom are needed to establish an eternal bank where people could unite and become richer.
One formula used :
FV = P (1 + r)^Y
(p = 1000$, r = 6%, y = 360, FV = $1,288,580,323,179.86)
6% of interest involve a lot of risks.