>>21149268>You don't even know you are dead
This very statement is a rabbit hole which I am always astounded how few people ever dive into. I can offer you some thoughts anon which will either remedy your fear if you hold science dear, or lead you (perhaps even to your own surprise) to turn away from science and seek other explanations.
First, the science:
The very concept you've posted is absolutely impossible to define in any scientific way. And here is why you will always fail:
We see people die all the time and every single bit of matter and energy is still accounted for. There is no mystical "nothing" that suddenly pops up which we can define and measure. Nothing disappears.
I invite you to try and be more creative, but I can already tell you that what you will discover is that the problems you face in trying to explain your idea are the EXACT same problems we run into when trying to define "consciousness".
Coincidence? You decided. If you think science is missing nothing at all from its understanding of life, then your journey ends here and your fear is dissuaded.
However, if you find yourself considering that just maybe science can be unaware of, or even simply have no access to, some key ingredient of life then you have now entered the terrifying and maddening realm of consciousness theories (or to be more accurate: the realm of vague ideas about consciousness).
I am sorry. But we all have to grow up some time.
Perhaps you can find solace in the fact that the majority opinion on this topic, where consciousness is concerned, seems to be that consciousness is conserved, so you will never experience nothing. There will always be something.