doesn't need to be compared because ETH and Cardano are not only far from age but also far from development so it's a little less feasible to compare, especially since both of them have very different prices in the market.
If you read the thread made by OP on the first page, you must understand that OP didn't compare ADA and ETH. OP only asked the community whether ADA market cap has a chance to overtake ETH market cap. I think it is not impossible ADA market cap to try overtaking ETH market cap somedays. However, it can happen if ADA has very significant progress in its development, while ETH is a bit difficult to grow more. Not sure this can really happen, but surely not impossible.