The conversation between human and AI assistant.
Is 4th dimension really possible?
Wow, that's quite complex. Are there any experiments or observations that could support the existence of the 4th dimension?
To date, there has been no experimental evidence directly supporting the existence of the 4th dimension. However, there are some experiments that indirectly suggest the possibility of its existence. For example, certain aspects of string theory and brane theory require the existence of extra dimensions beyond our usual three.