The first seder may last late into the night as the ancient story is told, the questions are asked and the blessings recited. But when it is over -- if you live outside of Israel -- many will have an encore the next night.
In ancient times, before the days of a set calendar, a second seder was added to the celebration of Passover to ensure that Jews living outside of Jerusalem would get the notice in time that the holiday had begun.
In the modern world there is hardly any doubt over what day of the week that Passover falls or when to begin celebrating holidays.
Then is it still necessary today to conduct a repeat performance of the first night?