Literal Ascension addresses the age old problem of temporary scaffolding in Minecraft. If you need to get to a higher point just briefly without having to place and/or destroy blocks to get there, then just build a stepladder!
The stepladder can be easily placed for those few blocks out of reach spots and a right-click will put it right back in your inventory. If you need to get to a higher point and don’t have any ladders handy, just chisel into the blocks and climb your way up or down.
And if you need a quick descent down a treacherous cavern, look no further than the climbing rope. Just hook it to your starting block and keep clicking until it hits bottom. Then just climb down! And you can easily climb back up when finished.