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We need to build an Yggdrasil
(fedia.io)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
Oh, we could probably create giant trees with selective breeding and gene editing. But those trees would still need hundreds of years to grow (and that's a good thing, since it would store CO2 while growing) and if there are problems with the gene editing we would only notice after decades.