Palmistry has traditionally read "luck" primarily through the fate line — the vertical line running up the centre of the palm — and to some extent through the sun line and certain marks on the Jupiter mount. A strong fate line was said to indicate a life guided by destiny, marked by fortunate events and good timing. A broken or absent fate line was a wilder, more self-made life.
None of this has anything to say about lottery numbers. The lottery was not invented when most of these palmistry systems were codified. But the underlying claim — that a palm can show whether a person is "lucky" in some meaningful, predictive sense — is precisely the claim that needs examining. And it does not survive examination.
Luck, as far as science is concerned, is either probability (which is not influenced by palm lines) or the product of attitude and opportunity-seeking behaviours (which are worth discussing, but not in the context of lottery tickets). No controlled study has found a correlation between any palm feature and actual fortunate outcomes.
