Makes sense! Thanks, doyouknowme

主要是那个 “purposeless splendor" 让我费解。刚才又在网上找到一个解释，和你的解释差不多：

“I believe Nick is talking about how now that he knows Gat*****y is driven by something, it finally gives Nick an answer to why Gat*****y lives so purposelessly and in riches.”