Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues
Total Revenue	$ 0	$ 0	$ 0	$ 0
Cost of revenues
Total cost of revenues	6,613	0	6,613	0
Gross loss	(6,613)	0	(6,613)	0
Operating expenses
Research and development	25,269	96,608	83,077	211,543
Sales and marketing	7,699	6,198	12,764	12,384
General and administrative	17,062	33,253	43,575	61,133
Loss on disposal of property and equipment	0	1,407	3,698	1,407
Change in fair value of earnout liability	(664)	0	2,100	0
Total operating expenses	49,366	137,466	145,214	286,467
Loss from operations	(55,979)	(137,466)	(151,827)	(286,467)
Other (expense) income, net	(1,466)	(6,936)	(298)	(7,851)
Loss before income taxes	(124,900)	(141,685)	(269,873)	(294,783)
Income tax provision	(28)	(9)	(28)	(9)
Net loss	(124,928)	(141,694)	(269,901)	(294,792)
Total comprehensive loss
Net loss	(124,928)	(141,694)	(269,901)	(294,792)
Foreign currency translation adjustment	6,122	4,248	5,567	3,684
Total comprehensive loss	$ (118,806)	$ (137,446)	$ (264,334)	$ (291,108)
Class A
Net loss per share of Class A and B Common Stock attributable to common stockholders:
Basic (in dollars per share)	$ (0.10)	$ (0.44)	$ (0.28)	$ (0.91)
Diluted (in dollars per share)	$ (0.10)	$ (0.44)	$ (0.28)	$ (0.91)
Weighted average shares used in computing net loss per share of Class A and B Common Stock:
Basic (in shares)	1,196,878,783	322,717,920	963,766,803	322,466,055
Diluted (in shares)	1,196,878,783	322,717,920	963,766,803	322,466,055
Class B
Net loss per share of Class A and B Common Stock attributable to common stockholders:
Basic (in dollars per share)	$ (0.10)	$ (0.44)	$ (0.28)	$ (0.91)
Diluted (in dollars per share)	$ (0.10)	$ (0.44)	$ (0.28)	$ (0.91)
Weighted average shares used in computing net loss per share of Class A and B Common Stock:
Basic (in shares)	1,196,878,783	322,717,920	963,766,803	322,466,055
Diluted (in shares)	1,196,878,783	322,717,920	963,766,803	322,466,055
Related Party
Operating expenses
Change in fair value of notes payable and warrant liabilities	$ 384	$ 0	$ 384	$ 0
Loss on settlement of notes payable	(6,492)	0	(6,492)	0
Interest expense	(70)	(1,313)	(70)	(1,935)
Nonrelated Party
Operating expenses
Change in fair value of notes payable and warrant liabilities	24,324	5,158	72,459	6,344
Loss on settlement of notes payable	(85,392)	0	(183,528)	0
Interest expense	$ (209)	$ (1,128)	$ (501)	$ (4,874)