Data

• “Crisis” the past few years

• Thuan-Izotov reevaluation of 4He abundance

• Sangalia D abundance probably false

• Now concordance

WBh2=0.017_0.004

(Thuan, Izotov)

• CMB+LSS now consistent

WB=0.02–0.037 (Tegmark, Zaldarriaga. Hamilton)

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