There are a lot of the pill descriptions that are really dumb and ambiguous.
The most logical of the group of pills, and the best choices are 7 and 9, and the reasons for those two being the best should be obvious, both in terms of the potential to live forever and to have a guarantee of having a sound mind and body. Living forever would allow you to do whatever you want, and hopefully NOT too much boredom would set in from such, even after thousands of years (which might cause you to want to make sure whatever blockchain that you chose will continue to exist, otherwise, poof!!!!! you are a gonner.)
Anyhow, for number 9, there is a need to disambiguate by defining "still exists" for the blockchain that is chosen.
Even though currently bitcoin remains the most likely blockchain to continue to exist and for the longest time, even choosing some other blockchains could result in "still existing" and therefore a long life, depending upon how "still exist" is defined.
So, for example, if your immortality depended on a certain blockchain, even ethereum, to still exist, you could take actions to prop up such blockchain, even if such blockchain is otherwise dead to most aspects of humanity. In 100 years or 500 years, for example, even if .5% of the world is using a certain blockchain, such as ethereum (hate to talk about such a shitty coin, but trying to make the point of propping up shit), such largely non-used blockchain could fit a definition of "still existing" because it continues to be propped up by someone (and therefore a group) who is willing to continue to support it.
