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Daily Wisdom · May 4, 2026
Professor Zen's Thought of the Day
#10th insight from the card vault 📚
“PSA (Professional Sports Authenticator) has graded over 50 million cards since its founding in 1991. During the 2020-2021 card boom, their submission waitlist stretched to 12+ months with millions of cards backlogged.”
Sports Cards
— Professor Zen, TCGZen Card Scholar
💬 What do you think? Drop your thoughts below!
🎓 TCGZen · tcgzen.com