Maybe a 24 word seed phrase will however become more relevant in the future when there is more and more computing power available. Is there any calculation if it will be possible to crack 12 word seed phrases with a super computer maybe in the next 50-100 years if you take into consideration how fast the capacity grows?
No way to crack either 12 or 24 words seed phrases (providing they are not biased on some extend) in any future as this requires enormous source of energy. To avoid repeating comment I head you to the relevant estimations based on Landauer's principle
https://bitcointalk.org/index.php?topic=5477971.msg63329443#msg63329443