What would happen if a bald man would make a neder nezirus? He will never have the requisite 30 days growth for the tiglachas, so he could theoretically be a nazir forever, or possibly, is the neder invalid in the first place since he has made a neder to do something impossible?
Thank you & tizku l'mitzvot
L Zahn, Lawrence, NY
Your question is the subject of a Machlokes between Beis Shamai and Beis Hillel on 46b.