是卫生纸官网的某访谈, 当时设计师谈到魔绳术就是用来给你睡觉用的, 所以不用纠结次元袋能不能进魔绳的问题.
当然某FAQ也有这么一段, 虽然我不确定这是不是3E的...
Will extradimensional items rupture a bag of holding? The DUNGEON MASTER’s Guide says that a bag of holding placed within a portable hole tears a rift to the Astral Plane. Bag and hole alike are then sucked into the void and forever lost. The DUNGEON MASTER’s Guide also says that when a portable hole is placed within a bag of holding, it opens a gate to the Astral Plane. The hole, the bag, and any creatures within a 10-foot radius are drawn there, destroying the portable hole and bag of holding in the process. However, the description for Heward’s handy haversack makes no mention of any rifts or gates. This implies that only the combination of a bag of holding and portable hole forms a rift or gate. Thus, a bag of holding could be placed inside another bag of holding with no unusual effects.
As stated in the FAQ, it’s a general rule that you can’t mix items containing nondimensional or extradimensional spaces (things that are bigger inside than out) with each other or with portable holes. Such combinations tend to strain the fabric of the cosmos. Putting one bag of holding within another is just like putting the bag into a portable hole. Items that function like bags of holding, such as Heward’s handy haversacks, cause the same mishaps when mishandled.
Note you can freely go plane hopping with portable holes, bags of holding, and the like. Spells that produce their own extradimensional spaces, such as rope trick, pose no danger to occupants who may be using portable holes, bags of holding, and the like.
