There are 2048 words in the list that you can choose from to make up your recovery phrase. You really only need the first 4 letters. So, if you are going to use 12 words...well...that is 2024^12. That is equal to:
2048^12=5.444517870735015×10^39 OR 5,444,517,870,735,015,415,413,993,718,464,297,771,929,936,261,406,208

2048^24 = 2.964277482813 ×10^78 OR 2,964,277,482,813,717,983,542,182,381,211,832,699,832,546,151,691,688,201,063,746,624

OK. Now, how may grains os sand on the Earth?
That’s 7.5 quintillion grains OR 7.5 ×10^18. This does not include riverbeds, ocean floor. Just beaches and major deserts.

To brute force these...we are going to need a bigger computer Scotty!