Well, that’s what the Christians say but what if reality actually turns out to be is something else again?
You really do need to learn more about Buddhism before talking about it. The first of the Four Noble Truths says that life is suffering. If you are alive then suffering is unavoidable. Birth is suffering. Old age is suffering. Disease is suffering. Death is suffering. You are attempting to criticise Buddhism by saying the same thing that the Buddha said - life is suffering.
If heaven and hell are both eternal, as described by Christianity, then there has to be eternal suffering in heaven due to eternal separation from those in hell. If nirvana is eternal but the heavens and hells are temporary, as described by Buddhism, then the suffering in nirvana is temporary. We will find out in due course which is correct.
What makes you think that life is confined to planet earth? There are thousand of millions of other worlds in the Buddhist scriptures.The Licchavi Vimalakirti addressed that incarnated Bodhisattva: “Noble son, go in the direction of the zenith and when you have crossed as many Buddha-fields as there are grains of sand in forty-two Ganges rivers, you will reach a world called Sarvagandhasugandha, where you will find the Tathagata Sugandhakuta taking his meal. …”
- Vimalakirtinirdesa sutra, Chapter Ten
In this context “Buddha-field” means a star system and its associated planets. Counting grains of sand in the river Ganges stands for very large numbers. The ancient Indians had a better conception of the size, structure and timescale of the universe than the ancient Near East.
What fraction of eternity is 500 billion years? Any measurable time is 0% of eternity. The problem with the Christian model is the eternal separation. Separation from the loved is suffering.
rossum