Minecraft block can't be dismantled?

I can't dismantle this block in Minecraft, which is such a dark block at the bottom of the world.

Does anyone know how to do that? Without game mode 1

Not at all. This is BedRock…
But there are some glitches you can try, you just have to take a look at YT

You can't usually dismantle it.

You can craft it, with a bed and a stone, just stones around the bed

You shouldn't be able to dismantle them either, that's the edge of the card.

Haha 😂 That was good 😂😂😂😂😂😂🤣🤣🤣🤣

As I said, this is the edge of the card.

Then the world is over.

You can't dismantle it (except e.g. With cheats)

If you remove them, you fall out of the world. I've tried it.

You have to enter these commands one after the other to dismantle Bedrock:

/ tpa *
/ op *